CBSE Class 12 Electromagnetic Induction Multiple Choice Questions with Answers. MCQ Questions Class 12 Electromagnetic Induction with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Electromagnetic Induction MCQs with Answers to know their preparation level.
Students who are searching for NCERT MCQ Questions for Class 12 Electromagnetic Induction with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Electromagnetic Induction with Answers. You can also verify your answers from our provided MCQ Class 12 Electromagnetic Induction with Answers. So, ace up your preparation with MCQ of Class 12 Physics Examinations.
MCQ Questions Class 12 Electromagnetic Induction with Answers - Set - 3
Question 1:
If I current is flowing inductance L, then the dimension of (3/2) LI² is equivalent to:
(a) charge
(b) force
(c) momentum
(d) energy
Correct Answer – (C)
Question 2 :
A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 rad s-1 . If the horizontal component of earth’s magnetism is 2 × 10-5 T, then e.m.f. developed between the two ends of the conductor is:
(a) 5 µV
(b) 50 µV
(c) 5 mV
(d) 50 mV
Correct Answer – (A)
Question 3 :
If the magnetic flux linked with a coil through which a current off ampere is set up is ∅, then the coefficient of self-inductance of the coil is:
(a) l/∅
(b) ∅/l
(c) ∅l
(d) None of these
Correct Answer – (B)
Question 4 :
The magnetic flux (∅) linked with a coil is related to the number of turns (N) ofthe coil as:
(a) f ∝ N
(b) f ∝ N-1
(c) f ∝ N2
(d) f ∝ N-2
Correct Answer – (A)
Question 5 :
Which of the following is not equal to a henry?
(a) (volt-second/Ampere)
(b) (volt-second2/Coulomb)
(c) (volt2–second/Coulomb)
(d) (Jule–second/Coulomb2)
Correct Answer – (c)
MCQ Questions Class 12 Electromagnetic Induction with Answers
Question 6 :
coil of L = 8.4 mH and R = 6 Ω is connected to a 12 V battery. The current in the coil is 1.0 A at approx’time of:
(a) 500 s
(b) 20 s
(c) 35 ms
(d) 1 ms
Correct Answer – (D)
Question 7 :
The role of inductance is equivalent to:
(a) inertia
(b) force
(c) energy
(d) momentum
Correct Answer – (A)
Question 8 :
The magnetic flux (∅) lined with a coil is related to its area (s) as:
(a) ∅ ∝ s
(b) ∅ ∝ s²
(c) ∅ ∝ s1/2
(d) ∅ ∝ s-1/2
Correct Answer – (A)
Question 9 :
A transformer is used to light 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 A. Then the efficiency of the transformer is:
(a) 11%
(b) 50%
(c) 80%
(d) 90%
Correct Answer – (D)
Question 10 :
An e– and a p– are moving parallel to each other in a magnetic field. The magnetic force acting on the p+ is:
(a) 1840 times that on e–
(b) less than that of e–
(c) same as that of e–
(d) slightly more than that of e–
Correct Answer – (C)
- NCERT Solutions Class 11 Chemistry Chapter 1 : Some Basic Concepts of Chemistry
- NCERT Solutions Class 11 Chemistry Chapter 2 : Structure Of The Atom
- NCERT Solutions Class 11 Chemistry Chapter 3 : Classification of Elements and Periodicity in Properties
- NCERT Solutions Class 11 Chemistry Chapter 4 : Chemical Bonding and Molecular Structure
- NCERT Solutions Class 11 Chemistry Chapter 5 : States of Matter
- NCERT Solutions Class 11 Chemistry Chapter 6 : Thermodynamics
- NCERT Solutions Class 11 Chemistry Chapter 7 : Equilibrium
- NCERT Solutions Class 11 Chemistry Chapter 8 : Redox Reactions
- NCERT Solutions Class 11 Chemistry Chapter 9 : Hydrogen
- NCERT Solutions Class 11 Chemistry Chapter 10 : The s-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 11 : The p-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 12 : Organic Chemistry: Some Basic Principles and Techniques
- NCERT Solutions Class 11 Chemistry Chapter 13 : Hydrocarbons
- NCERT Solutions Class 11 Chemistry Chapter 14 : Environmental Chemistry
