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

2. What is mutual induction?

3. Which of the following increases in a step-down transformer?

4. The function of a commutator in a generator is to:

5. What is the unit of magnetic flux?

6. Lenz’s Law is based on:

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

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

9. An electric generator works on the principle of:

10. Which factor does NOT affect the magnitude of induced emf?

11. What is electromagnetic induction?

12. In a transformer, energy is transferred from primary to secondary:

13. Which of the following supports Lenz’s Law?

14. When magnetic flux through a coil changes, what is produced?

15. Which material is best for transformer core?

16. What happens to induced emf if speed of coil rotation in a generator is increased?

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

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

19. Which phenomenon does not occur in DC generators?

20. In an AC generator, current is induced by:

21. Which device increases or decreases AC voltage?

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

23. A coil with more turns will produce:

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

25. In an ideal transformer, efficiency is:


 

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