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
Sensitivity $S=\frac{\theta}{i}=\frac{\theta}{K \tan \theta}$ where $K=\frac{2 R B_H}{\mu_0 N}$
For increasing sensitivity $K$ should be decreased and hence number of turns should be increased.
For increasing sensitivity $K$ should be decreased and hence number of turns should be increased.
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