Physics
Grade-10
Easy
Question
In a non-uniform magnetic field, if a coil of metal wire is kept stationary, then:
- A current is induced in the coil
- An e.m.f. is induced in the coil
- Both e.m.f. and current is induced
- Neither e.m.f. nor current is induced
Hint:
In a non-uniform magnetic field, if the coil is kept stationary, neither emf nor current will be induced.
The correct answer is: Neither e.m.f. nor current is induced
In a non-uniform magnetic field, if the coil is kept stationary, neither emf nor current will be induced.
- The e.m.f is created when the coil is close to the magnet.
- For the induction of emf, the coil or stable magnetic field needs to be in close contact.
- Since here the coil is stationary and there is a non-uniform magnetic field which is not changing with time.
- There is no change in magnetic flux
- This results in no EMF or current induction.
coil of metal wire is stationary and there is non uniform magnetic field which is not changing with time. Hence ,there is n change in magnetic flux so no EMF or current will be induced.
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