Electromagnetic induction Trivia Quiz

Questions : 7 | Total Attempts: 2454 | Recent Updated: 24-Feb-2020
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When a change occurs in the magnetic flux linked with the coil, an electromagnetic field is induced in the coil. If the circuit is closed, then a current is flowing in the coil due to induced emf. This phenomenon is called electromagnetic induction and flowing current is called induced current. So take this quiz and increase your knowledge about electromagnetic induction.

Questions Excerpt


1. According to Faraday's law, the emf induced in a coil is proportional to the........ rate of change of flux through it.

A. Force

B. Distance

C. Time

D. Speed

2. Which law states that the direction of the induced current is such that its own magnetic field opposes the change in flux responsible for inducing the current?

A. Faraday's law

B. Lenz's law

C. Ohm's law

D. Fleming's right hand rule

3. An electric motor converts electrical energy into...

A. Heat energy

B. Mechanical energy

C. Sound energy

D. None of these

4. The current magnitude and direction change with time and after a fixed period of time, it repeats its direction with the same magnitude is called.....

A. Direct current

B. Indirect current

C. Alternative current

D. All of these

5. When the alternative current circuit has resistance only, then-current and voltage are in....... phase.

A. Opposite

B. Same

C. Both of these

D. None of these

6. When there is the only capacitance in the alternative current circuit then-current leads the voltage by ...... in phase.

A. 360°

B. 90°

C. 180°

D. 60°

7. An electric generator converts mechanical energy into......

A. Sound energy

B. Heat energy

C. Electrical energy

D. None of these

 

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