- 1(current)
Q. No.When will the current sensitivity of a moving coil galvanometer be high?
(\(N\) = number of turns, \(B\) = magnetic field, \(A\) = area of coil, and \(C\) = Torsional constant of spring)
(\(N\) = number of turns, \(B\) = magnetic field, \(A\) = area of coil, and \(C\) = Torsional constant of spring)
| 1. | \(N\) is small | 2. | \(B\) is small |
| 3. | \(A\) is small | 4. | \(C\) is small |
Subtopic: Â Moving Coil Galvanometer |
 83%
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By which relation is the deflection of the coil \(\theta\) related to the electrical current \(i\) in a moving coil galvanometer?
1. \(i \propto \tan \theta\)
2. \(i \propto \theta\)
3. \(i \propto \theta^{2}\)
4. \(i \propto \sqrt{\theta}\)
1. \(i \propto \tan \theta\)
2. \(i \propto \theta\)
3. \(i \propto \theta^{2}\)
4. \(i \propto \sqrt{\theta}\)
Subtopic: Â Moving Coil Galvanometer |
 76%
From NCERT
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What happens when the number of turns in a galvanometer is doubled?
| 1. | voltage sensitivity becomes double. |
| 2. | current sensitivity becomes double. |
| 3. | voltage sensitivity becomes half. |
| 4. | current sensitivity remains the same. |
Subtopic: Â Moving Coil Galvanometer |
 73%
From NCERT
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- 1(current)
Q. No.
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