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The earth's magnetic field...

The earth's magnetic field

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is NOT the correct explanation of A

C

A is true but R is false

D

A is false and R is true

Text Solution

Verified by Experts

The correct Answer is:
A
The coil of moving coil galvanometer is suspended in a very strong radial magnetic field. Earth.s magnetic field is too weak compared to that and hence its effect is negligible. So, assertion and reason both are true and the reason both are true and the reason explains the assertion properly.
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