CBSE Class 10 Science Chapter 13 Magnetic Effects of Electric Current Multiple Choice Questions with Answers. MCQ Class 10 Science Magnetic Effects of Electric Current with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Magnetic Effects of Electric Current MCQs with Answers to know their preparation level.
MCQ Class 10 Science Magnetic Effects of Electric Current with Answers - Set - 6
Question 1:Â
If the current values periodically from zero to a maximum value, back to zero and then reverses its direction, the current is
(a) direct
(b) alternative
(c) pulsating
(d) none of the above
Correct Answer – (B)
Question 2 :Â
Fleming’s left hand and Right hand rules are used in
(а) Generator and electric motor
(b) Electric motor and generator
(c) any rule can be used for any device
(d) both are not applied for generator and motor.
Correct Answer – (B)
Question 3 :Â
A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential difference
(a) more in (i) than in (ii) case
(b) more in (ii) than in (i) case
(c) same in both
(d) can’t say
Correct Answer – (A)
Question 4 :Â
The instrument that use to defect electric current in the circuit is known as
(a) electric motor
(b) A.C generator
(c) galvanometer
(d) none of the above
Correct Answer – (A)
Question 5 :Â
In electric motor, to make the coil rotating continuously in the same direction, current is reversed in the coil after every half rotation by a device called
(a) carbon brush
(b) commutator
(c) slip ring
(d) armature
Correct Answer – (B)
MCQ Class 10 Science Magnetic Effects of Electric Current with Answers
Question 6 :Â
A D.C generator works on the principle of
(a) ohnis law
(b) Joule’s law of heating
(c) faraday’s law of electromagnetic induction.
(d) none of the above
Correct Answer – (C)
Question 7 :Â
A.C generator works on the principle of
(a) force experience by a conductor in magnetic field
(b) electromagnetic induction
(c) electrostatic
(d) force experience by a charge particle in electric field.
Correct Answer – (A)
Question 8 :Â
We can induce the current in a coil by
(a) moving the coil in a magnetic field
(b) by changing the magnetic field around it
(c) by changing the orientation of the coil in the magnetic field
(d) All of above
Correct Answer – (A)
Question 9 :Â
The condition for the praenomen of electromagnetic induction is that there must be a relative motion between
(a) the galvanometer and magnet
(b) the coil of wire and galvanometer
(c) the coil of wire and magnet
(d) the magnet and galvanometer
Correct Answer – (C)
Question 10 :Â
Direction of rotation of a coil in electric motor is determined by
(a) fleming’s right hand rule
(b) fleming’s left hand rule
(c) faraday law of electromagnetic inductors
(d) None of above
Correct Answer – (B)
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