Q.

How is a voltmeter connected in the circuit to measure the potential difference between two points?


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a

Series

b

Parallel

c

All of these

d

None of these 

answer is B.

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Detailed Solution

Parallel is a voltmeter connected in the circuit to measure the potential difference between two points.
Volt  is the SI unit of potential difference. A voltmeter is a device used for measuring the electrical potential difference between two points in an electrical circuit. A voltmeter is a connected parallel with a circuit element to measure the voltage drop across it. It must be designed to draw very little current from the circuit so that it does not extensively alternate its measuring circuit.
  
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How is a voltmeter connected in the circuit to measure the potential difference between two points?