Physics Electromagnetic Induction Test Online Preparation Mcqs

Physics Electromagnetic Induction Test Online Preparation Mcqs With Answers Start Below

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Question 1 of 15

1. Magnetic compass needle will be deflecting, if it is kept  near _________.
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. eddy currents are used in:
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. Which one of the following functions, like a motor?
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. C cannot be used for _______
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. A coil of wire is arranged with its plane perpendicular to a uniform magnetic field of flux density B. when the radius of the coil increases from r1 to r2 in time ∆t, then what is the emf induced in the coil?
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Inductors acts as a short circuit for
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. Which of the following works on torque on the current carrying conductor placed in magnetic field
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. A step up transformer has transformation ratio of 3:2. What is the voltage is secondary if the primary voltage is 30V.
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. A particle moving in uniform magnetic field then
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. The only difference between construction of D.C. generator and A.C generator is that of ________
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. Current produce by moving the loop of wire across a magnetic field is called _______
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. Which one of the following devices does not function like an electric motor?
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. For long distance transmission, the transformer used is _____
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. The alternating current has frequency of 106 Hz, in such a way that time period for completion of cycle is _________.
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. An alternating current of voltage ________.
A.
B.
C.
D.

Question 15 of 15


 

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