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A moving coil voltmeter has a uniform scale with 100 divisions, the full scale reading is 200 V and 1/10 of a scale division can be estimated with a fair degree of certainty.The resolution of the instrument in volt is
  • a)
    2
  • b)
    0.01
  • c)
    0.2
  • d)
    1
Correct answer is option 'C'. Can you explain this answer?
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A moving coil voltmeter has a uniform scale with 100 divisions, the fu...
Given information:

- Moving coil voltmeter
- Uniform scale with 100 divisions
- Full scale reading = 200 V
- 1/10 of a scale division can be estimated with a fair degree of certainty

To determine the resolution of the instrument in volts:

Definition of resolution:

- The smallest change in input quantity that produces a detectable change in output quantity

Formula for resolution:

- Resolution = Full scale reading / Number of scale divisions

Calculation:

- Number of scale divisions = 100
- Full scale reading = 200 V
- Resolution = 200 / 100 = 2 V
- 1/10 of a scale division can be estimated = 1/10 * 2 V = 0.2 V
- Therefore, the resolution of the instrument in volts is 0.2 V.

Answer: Option C (0.2)
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A moving coil voltmeter has a uniform scale with 100 divisions, the fu...
A moving coil voltmeter has a uniform scale with100 divisions, scale full reading is 200 volt and 1/10 of ascale division can be estimated with a fair degree ofcertainty. Determine the resolution of instrument in volt
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