A voltmeter of resistance $R$ is to be used to measure the potential difference across a resistance ' $r$ '.…

A voltmeter of resistance $R$ is to be used to measure the potential difference across a resistance ' $r$ '. In which case the reading will be nearest to that in the absence of voltmeter?
  1. $R < r$
  2. $R>r$
  3. $R=r$
  4. $R=0$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2020 (07 Oct Special)

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