State whether a voltmeter has high resistance or low resistance. Give reason.

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Solution

Voltmeter:
A voltmeter is a device that measures voltages of direct or alternating electric current on a meter that is typically graded in volts.
To measure the voltage across a gadget, a voltmeter is always connected in parallel across it.
It has high resistance so that the current passing through the circuit is not disrupted and cannot pass through it instead of passing through the electrical equipment across which it is connected and it can measure the right value.
Therefore, a voltmeter has high resistance.

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(a) What do you understand by the term "potential difference"?
(b) What is meant by saying that the potential difference between two points is 1 volt?
(c) What is the potential difference between the terminals of a battery if 250 joules of work is required to transfer 20 coulombs of charge from one terminal of battery to the other?
(d) What is a voltmeter ? How is a voltmeter connected in the circuit to measure the potential difference between two points. Explain with the help of a diagram.
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state whether a voltmeter has a high resistance or a low resistance give reason for your answer

Q. Solve this:
Resistance of voltmeter should be high or low? Give reason.

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