Physics Electromagnetic Induction Test Online Preparation Mcqs

Physics Electromagnetic Induction Test Online Preparation Mcqs With Answers Start Below

 7%

Question 1 of 15

1. The emf induced in a coil by a changing magnetic flux may have unit as _______
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. If the coil is wound on an iron core, the flux through it will ________
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. If the secondary coil has Ns turns and the primary Np turns, the relation between secondary and primary voltages is given by ________.
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. Weber is the unit of
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Self inductance of a coil depend upon
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Eddy currents are produced in a material when it is:
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

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

Question 7 of 15

Question 8 of 15

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

Question 8 of 15

Question 9 of 15

9. Light roofs are blown on during wind storm. It is because of
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

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

Question 10 of 15

Question 11 of 15

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

Question 11 of 15

Question 12 of 15

12. The output voltage of a transformer is 3 times the input voltage then turns ratio will be ________.
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. The practical illustration of the phenomenon of mutual induction is _______.
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. The answer to which question will distinguish between magnetic and non magnetic materials
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. In an electromagnetic wave the electric field vector E and the magnetic field vector B are
A.
B.
C.
D.

Question 15 of 15


 

Leave a Reply

Your email address will not be published. Required fields are marked *

Study © 2018 Frontier Theme
error: Content is protected !!