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The pointer of a dead-beat galvanometer ...

The pointer of a dead-beat galvanometer gives a steady deflection because

A

Its pointer is very light

B

Its frame is made of ebonite

C

Eddy currents are produced in the conducting frame over which the coil is would

D

Its magnet is very strong

Text Solution

Verified by Experts

The correct Answer is:
C
In a dead beat galvanometer, the coil is wound on a metallic frame. The eddy currents induced in the frame, produce electromagnetic damping. Hence, when the current is passed, the pointer comes to rest immediatly without producing any oscillation of the coil.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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