MDCAT Physics Electromagnetic Induction Test Online

Physics Electromagnetic Induction MCQS Online Test

MDCAT Physics Electromagnetic Induction Chapter Online Test

Total Questions: 49
Time Allowed: 25 Minutes
Total Marks: 49
How to Attempt Test: Please choose the right Option in MCQ-type question.
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1. In ideal transformer, input power equals:

2. Why are transformers used in power transmission?

3. The unit of self-inductance is:

4. In AC generators, alternating current is produced due to:

5. What does Faraday’s First Law state?

6. Which of these quantities is conserved in an ideal transformer?

7. In an ideal transformer, efficiency is:

8. Induced emf is maximum when angle between magnetic field and motion of conductor is:

9. Transformers are based on:

10. Why does a transformer not work with DC?

11. Primary and secondary coils in a transformer are linked through:

12. What is the role of brushes in a generator?

13. An emf is induced in a conductor when it:

14. According to Lenz’s Law, the induced current will:

15. The number of turns in the secondary coil of a transformer is doubled. The output voltage will:

16. Which law governs electromagnetic induction?

17. Faraday's Second Law relates induced emf to:

18. What is the source of energy in an electric generator?

19. What is mutual induction?

20. What is the function of slip rings in an AC generator?

21. The direction of induced current is such that it:

22. What is the purpose of an iron core in a transformer?

23. What kind of core is used in a transformer to reduce energy loss?

24. Which phenomenon does not occur in DC generators?

25. If frequency of AC input increases, induced emf in transformer:


 

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