MCQ
Assertion : Free electron always keep on moving in a conductor even then no magnetic force act on them in magnetic field unless a current is passed through it.
Reason : The average velocity of free electron is zero.
Reason : The average velocity of free electron is zero.
- ✓If both assertion and reason are true and the reason is the correct explanation of the assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of the assertion.
- CIf assertion is true but reason is false.
- DIf the assertion and reason both are false.