Chapter 19, Problem 53P

To determine

The resistance of the voltmeter.

Answer to Problem 53P

The resistance of the voltmeter is $7.5\times {10}^6\text{Ω}$ .

Explanation of Solution

Given info:

The voltage of the voltmeter is, $V=250\text{V}$

The sensitivity of the voltmeter is, $s=30000\text{Ω}/\text{V}$

Formula Used:

The expression to calculate the resistance of the voltmeter is,

  $R=s\cdot V$

Calculation:

Substitute all the values in the above expression.

  $\begin{array}{c}R=\left(30000\text{Ω}/\text{V}\right)\left(250\text{V}\right)\\ =7.5\times {10}^6\text{Ω}\end{array}$

Conclusion:

Thus, the resistance of the voltmeter is $7.5\times {10}^6\text{Ω}$ .