MCQ
The sensitivity of a tangent galvanometer is increased if
- ANumber of turn decreases
- ✓Number of turn increases
- CField increases
- DNone of the above
✓
Answer
Correct option: B.
Number of turn increases
b
(b)Sensitivity $S = \frac{\theta }{i} = \frac{\theta }{{K\tan \theta }}$ where $K = \frac{{2R{B_H}}}{{{\mu _0}N}}$
For increasing sensitivity $K$ should be decreased and hence number of turns should be increased.
(b)Sensitivity $S = \frac{\theta }{i} = \frac{\theta }{{K\tan \theta }}$ where $K = \frac{{2R{B_H}}}{{{\mu _0}N}}$
For increasing sensitivity $K$ should be decreased and hence number of turns should be increased.
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