AP EAMCET · PHYSICS · Magnetic Effects of Current
A galvanometer has a deflection of 25 divisions for a current of 0.1 A flowing through it. Then the current sensitivity of the galvanometer is
- A \(25 \mathrm{div} / \mathrm{A}\)
- B \(250 \operatorname{div} / \mathrm{A}\)
- C \(2.5 \mathrm{div} / \mathrm{A}\)
- D \(0.25 \mathrm{div} / \mathrm{A}\)
Answer & Solution
Correct Answer
(B) \(250 \operatorname{div} / \mathrm{A}\)
Step-by-step Solution
Detailed explanation
Current sensitivity, \(\mathrm{I}_{\mathrm{S}}=\frac{\mathrm{NBA}}{\mathrm{k}}\) \(=\frac{25}{0.1}=250 \mathrm{div} / \mathrm{A}\)
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