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The sensitivity of a voltmeter is expressed in

  • A.volts per division of the scale
  • B.ohms per volt
  • C.volts per ohm of internal resistance
  • D.amperes per volt of applied input

Answer: B

Correct answer: ohms per volt

\[ \mathrm{Sensitivity} = \frac{1}{I_{fsd}}, \] expressed in ohms per volt. It states how much resistance the instrument presents for each volt of range, so a higher figure means less current drawn from the circuit and less disturbance to what is being measured.

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