A) Magnetic equator
B) Magnetic poles
C) Equator
D) At all places
Correct Answer: B
Solution :
Time period in vibration magnetometer \[T=2\pi \sqrt{\frac{I}{M{{B}_{H}}}}\], At poles \[{{B}_{H}}=0\ so\ T=\infty \]You need to login to perform this action.
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3 sec