voltmeter

[logistic_guy]

What is the resistance of a voltmeter on the \(\displaystyle 250\)-\(\displaystyle \text{V}\) scale if the meter sensitivity is \(\displaystyle 50,000 \ \Omega/\text{V}\)?

 

[khansaheb]

What is the resistance of a voltmeter on the \(\displaystyle 250\)-\(\displaystyle \text{V}\) scale if the meter sensitivity is \(\displaystyle 50,000 \ \Omega/\text{V}\)?

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[logistic_guy]

What is the resistance of a voltmeter on the \(\displaystyle 250\)-\(\displaystyle \text{V}\) scale if the meter sensitivity is \(\displaystyle 50,000 \ \Omega/\text{V}\)?

Very simple!

\(\displaystyle R = \text{scale} \times \ \text{sensitivity} = 250 \times 50000 = \textcolor{blue}{1.25 \times 10^7 \ \Omega}\)