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CBSE Class 6 Science MCQ Electricity and Circuits with Answers
Question : Name a device which use electric cell as a source of electricity.
(a) T.V.
(b) Candle
(c) Camera
(d) All of above
(c) CameraShow Answer :
Answer :
Question : A device that breaks the circuit is called:
(a) switch
(b) filament
(c) bulb
(d) battery
(a) switchShow Answer :
Answer :
Question : The wire which carries away the current to the power house is called
(a) Earth wire
(b) Live wire
(c) Neutral wire
(d) None of these
(c) Neutral wireShow Answer :
Answer :
Question : How many terminals are there in a dry cell?
(a) One
(b) Two
(c) Three
(d) Four
(b) TwoShow Answer :
Answer :
Question : The bulb with broken filament is called a:
(a) Fused bulb
(b) Lighted bulb
(c) Both (a) and (b)
(d) None of these
(a) Fused bulbShow Answer :
Answer :
Question : Non metals like __________and __________are conductors of electricity.
(a)Wood and paper
(b) Graphite and gas carbon
(c) Glass and rubber
(d) None of theses
Show Answer :
Answer :
b
Question : A material which allows the electricity to pass through it is ________.
(a) conductor
(b) Insulator
(c) Transistor
(d) None of these
Show Answer :
Answer :
a
Question : Electric energy is produced from the____________ within the cell.
(a) Chemicals
(b) Metals
(c) Terminals
(d) None of these
Show Answer :
Answer :
a
Question : A complete electric circuit is called ______________ electric circuit.
(a) open
(b) Closed
(c) Complete
(d) None of these
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Answer :
b
Question : ______________ is an insulator.
(a) Metal
(b) acid
(c) Rubber
(d) Salt solution
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Answer :
c
Question : __________is a conductor.
(a) Wood
(b) Metal
(c) Paper
(d) Petrol
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Answer :
b
Question : In electric bells electric energy transform in to ____________energy.
(a) Mechanical energy
(b) Magnetic energy
(c) Sound energy
(d) Light energy
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Answer :
b
Question : ____________ is the positive terminal of an electric cell.
(a) Metal disc
(b) Metal case
(c) Metal cap
(d) Metal base
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Answer :
c
Question : The tiny coiled metal wire present inside the bulb is called____________.
(a) Element
(b) Conductor
(c) Filament
(d) None of these
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Answer :
c
Question : A combination of two or more electric cells is called___________.
(a) Electric circuit
(b) Battery
(c) Terminals
(d) None of these
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Answer :
b
Question : An electric bulb has ____________ terminals.
(a) 3
(b) 4
(c) 1
(d) 2
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Answer :
d
Question : ____________ is an electric device which easily closes or opens an electric circuit.
(a) Filament
(b) Electric bulb
(c) Electric switch
(d) Electric cell
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Answer :
c
Question : A material which does not allow the electricity to pass through it is___________.
(a) Conductor
(b) Electric cell
(c) Insulator
(d) None of these.
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Answer :
c
Question : The electric current in a closed circuit always flows from the ___________terminal of the electric cell to the ______terminal.
(a) Negative to positive
(b) Positive to negative
(c) Positive to positive
(d) None of these
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Answer :
b
Question : The base of an electric cell is its ___________terminal.
(a) Positive terminal
(b) Negative terminal
(c) Negative and positive
(d) None of these
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Answer :
b
Question : The path along which electric current flows is_____________.
(a) Switch
(b) Electric current
(c) Electric circuit
(d) Electric cell
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Answer :
c
Question : In _____________ electrical energy is transformed in to mechanical energy.
(a) Transistor
(b) Mixer grinder
(c) Electromagnet
(d) Electric bell.
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Answer :
b
Question : _____________ is an energy which flows in an electric circuit.
(a)Electric circuit
(b) Electromagnet
(c) Electric current
(d) None of these.
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Answer :
c
Question : _____________ is a safety wire which protect us from electric shocks and electric fire.
(a) Earth wire
(b) Neutral wire
(c) Live wire
(d) None of these
Show Answer :
Answer :
a
Question : ____________ is a device which converts chemical energy in to electrical energy.
(a) Electrical bell
(b) Electric lift
(c) Electric cell
(d) Electric bulb
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Answer :
c
Question : An electric cell has ____________terminals.
(a) 3
(b)4
(c)1
(d)2
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Answer :
d
Question : The central _____________of an electric cell is always positive.
(a) Circuit
(b) Chemical
(c) Terminal
(d) None of these
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Answer :
c
Question : Kerosene oil is an example of_______________.
(a) Conductors
(b) Insulators
(c) Electrolyte
(d) None of these
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Answer :
b
Question : The cylindrical container of electric cell is made of ___________ _and acts as negative terminal.
(a) Copper
(b) Iron
(c) Zinc
(d) Silver
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Answer :
c
Question : The wire which carries away the current to the power house is called____________.
(a) Earth wire
(b) Neutral wire
(c) Live wire
(d) None of these
Show Answer :
Answer :
b
Question : A bulb does not glow when a/an ________________ is used in the place of a switch.
(a) Iron nail
(b) Matchstick
(c) Aluminum
(d) copper
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Answer :
b
Question : Which of the following pairs consist of a conductor and an insulator of electricity?
(a) Wood and wool
(b) Copper and steel
(c) Silver and gold
(d) Silver and rubber
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Answer :
d
Question : Plastic, wood and Bakelite are some good ____________ of electricity.
(a) Absorbers
(b) Conductors
(c) Insulators
(d) reflectors
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Answer :
c
Question : Electrical wires and parts of electrical appliances are covered with ____________
(a) Silver b. Copper c. Gold d. plastic
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Answer :
d
Question : When the switch of an electric torch is in ON position electric current flows from the electric cell to the filament of an electric bulb due to which it gets ____ and the bulb ____.
(a) cooled, does not glow
(b) heated, does not glow
(c) heated, glows
(d) cooled, glows
Show Answer :
Answer :
c
Question : The second thick wire of the filament of an electric bulb is connected to a metal tip along the ____________ side of the metal cover at the base of the bulb.
(a) Conducting
(b) Insulating
(c) Short
(d) long
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Answer :
c
Question : A bulb in a closed circuit at times may not glow. Which of the following is not a cause for not glowing of the bulb?
(a) Connecting wires are made of wool.
(b) Energy of the cell in the circuit is completely exhausted.
(c) There may be a loose contact between the parts.
(d) The bulb is not fused.
Show Answer :
Answer :
d
Question : An electric cell produces electricity from the _____________ stored inside it.
(a) Current
(b) Energy
(c) Chemicals
(d) Light
Show Answer :
Answer :
c
Question : Filament of a bulb is made up of
(a) aluminium
(b) chromium
(c) platinum
(d) tungsten
(d) tungstenShow Answer :
Answer :
Question : A device which supplies light without the use of electricity ?
(a) Electric torch
(b) Candle
(c) Electric rod
(d) Electric bell
(a) Electric torchShow Answer :
Answer :
Question : Which of these is a conductor?
(a) Rubber
(b) Mica
(c) Copper
(d) Wood
(c) CopperShow Answer :
Answer :
Question : Which of the following is bad conductor of electric current?
(a) Graphite
(b) Nichrome
(c) Diamond
(d) Iron
(c) DiamondShow Answer :
Answer :
Question : A battery is
(a) a single cell
(b) a combination of cells in which cells are joined (+) to (-)
(c) a combination of cells in which cells are joined (+) to (+)
(d) None of these
(b) a combination of cells in which cells are joined (+) to (-)Show Answer :
Answer :
Question : Materials, which do not allow electricity to pass through them easily, are called ____________ of electricity.
(a) Deflectors
(b) Insulators
(c) Conductors
(d) Absorbers
Show Answer :
Answer :
b
Question : ____________ allow electric current to pass through them.
(a) Absorbers
(b) Insulators
(c) Conductors
(d) Deflectors
Show Answer :
Answer :
c
Question : Which of the following is an insulator?
(a) Silver
(b) Iron
(c) Copper
(d) Rubber
Show Answer :
Answer :
d
Question : Metals are ____________ of electricity.
(a) Absorber
(b) Conductors
(c) Insulators
(d) Deflectors
Show Answer :
Answer :
b
Question : What supplies electricity to the torch bulb ?
(a) Switch
(b) Glass
(c) Wire
(d) Electric cells
(d) Electric cellsShow Answer :
Answer :
Question : Combination of two or more cells is called
(a) battery
(b) cell
(c) bulb
(d) circuit
(a) batteryShow Answer :
Answer :
Question : In which case bulb will glow if following materials are placed in circuit?
(a) Thin plastic sheet
(b) Plastic comb
(c) Plastic clip
(d) Metal spoon
(d) Metal spoonShow Answer :
Answer :
Question : What is earth wire?
(a) Safety wire
(b) Dangerous wire
(c) Useful wire
(d) Useless wire
(a) Safety wireShow Answer :
Answer :
Question : A bulb lights up only in
(a) a closed circuit
(b) an open circuit
(c) in both
(d) series connection
(a) a closed circuitShow Answer :
Answer :
Question : Resistance of a wire is r ohms. The wire is stretched to double its length, then its resistance in ohms is
(a) r/2
(b) 4r
(c) 2r
(d) r/4
(b) 4rShow Answer :
Answer :
Question : The circuits in which the bulb shines are:
(a) Closed circuit
(b) Circuit
(c) Open circuit
(d) None of above
(a) Closed circuitShow Answer :
Answer :
Question : Cell is a device which
(a) converts chemical energy into electrical energy
(b) electrical energy into light energy
(c) electrical energy into magnetic energy
(d) None of these
Answer: (a) converts chemical energy into electrical energyShow Answer :
Answer :
Explanation:
In a cell, chemicals are used to produce potential difference.
Question : A bulb has
(a) two terminals and one filament
(b) two terminals and two filaments
(c) multiple terminals and single filament
(d) single terminal and single filament
Answer: (a) two terminals and one filamentShow Answer :
Answer :
Explanation:
A bulb has a filament which glows and two terminals which are joined to two terminals of the battery.
Question : Filament of a bulb is made up of
(a) aluminium
(b) chromium
(c) platinum
(d) tungsten
Answer: (d) tungstenShow Answer :
Answer :
Explanation:
Tungsten has high melting point and high resistance.
Question : Which is an example of an insulator
(a) bakelite
(b) aluminium
(c) tap water
(d) All of these
(a) bakeliteShow Answer :
Answer :
Question : The filament of a bulb is made up of
(a) tungsten
(b) platinum
(c) aluminium
(d) chromium
(a) tungstenShow Answer :
Answer :
Question : A thin coil of metal, which glows when electricity is passed through it, is called
(a) Bulb
(b) Filament
(c) Insulator
(d) Switch
(b) FilamentShow Answer :
Answer :
Question : To prevent electric shocks, the metallic electrical wires are covered with
(a) paper
(b) cotton
(c) aluminium
(d) plastic
(d) plasticShow Answer :
Answer :
Question : Filament of a torch bulb is
(a) a metal case
(b) metal tip at the centre of the base
(c) two thick wires
(d) a thin wire
(d) a thin wireShow Answer :
Answer :
Question : The cylindrical container of electric cell is made of ________________ and acts as negative terminal.
(a) Copper
(b) Iron
(c) Zinc
(d) Silver
(c) ZincShow Answer :
Answer :
Question : Those objects which, when placed in the circuit, let the bulb glow are called:
(a) Bad conductor
(b) Circuit
(c) Good conductor
(d) Switch
(c) Good conductorShow Answer :
Answer :
Question : A bulb whose filament is broken is called
(a) fused
(b) glowing
(c) conductor
(d) none of these
(a) fusedShow Answer :
Answer :
Question : A material which does not allow the electricity to pass through it is ___________.
(a) Conductor
(b) Electric cell
(c) Insulator
(d) None of these
(c) InsulatorShow Answer :
Answer :
Question : The flow from the positive terminal of the electric cell to its negative terminal.
(a) Current
(b) Open current
(c) Close current
(d) Electric current
(d) Electric currentShow Answer :
Answer :
Question : A battery is
(a) a single cell
(b) a combination of cells in which cells are joined (+) to (-)
(c) a combination of cells in which cells are joined (+) to (+)
(d) None of these
Answer: (b) a combination of cells in which cells are joined (+) to (-)Show Answer :
Answer :
Explanation:
In a battery two or more cells are combined in such a way that (+) terminal of one cell is joined to (-) terminal of other.
Question : A substance which allows electricity to pass through it is called
(a) a conductor
(b) an insulator
(c) semiconductor
(d) superconductor
Answer: (a) a conductorShow Answer :
Answer :
Explanation:
Substances which allow electric current to pass through them.
Question : Which is an example of an insulator
(a) bakelite
(b) aluminium
(c) tap water
(d) All of these
Answer: (a) bakeliteShow Answer :
Answer :
Explanation:
Aluminium and tap water are conductors of heat.
Question : An example of a conductor is
(a) tap water
(b) salt solution
(c) metal wire
(d) all of these
Answer: (d) all of theseShow Answer :
Answer :
Explanation:
Tap water, salt solution and metal wire are the examples of conductors.
Question : Bulb glows only in
(a) closed circuit
(b) open circuit
(c) in both circuits
(d) open circuit if bulb is not fused
Answer: (a) closed circuitShow Answer :
Answer :
Explanation:
Only a closed circuit is a complete circuit.
Question : How many terminals are there in a dry cell?
(a) One
(b) Two
(c) Three
(d) Four
Answer: (b) TwoShow Answer :
Answer :
Answer:
Dry cell has two terminals (+ve) and (-ve).
Question : To prevent electric shocks, the metallic electrical wires are covered with
(a) paper
(b) cotton
(c) aluminium
(d) plastic
Answer: (d) plasticShow Answer :
Answer :
Explanation:
Plastic is an insulator of electricity.
Fill in the blanks with appropriate words:
Question : An electrical cell has two terminals, a positive and a _______________.
Answer: negativeShow Answer :
Answer :
Question : Materials through which current can pass are called _______________.
Answer: conductorsShow Answer :
Answer :
Question : Materials through which current cannot pass are called _______________.
Answer: insulatorsShow Answer :
Answer :
Question : Our body is a _______________. conductor of electricity.
Answer: goodShow Answer :
Answer :
Question : When a switch is off, the circuit becomes _______________.
Answer: openShow Answer :
Answer :
Question : We use _______________ to test the conductivity of a material.
Answer: conduction testerShow Answer :
Answer :
Question : A switch either breaks or _______________ a circuit.
Answer: completesShow Answer :
Answer :
Question : Electricity we use in our homes is supplied from a _______________.
Answer: power houseShow Answer :
Answer :
