For measurement of potential difference, potentiometer is perferred in comparison to voltmeter because

For the measurement of potential difference, voltmeter is connected

For the measurement of potential difference, voltmeter is connected

Potentiometer is superior to voltmeter because

Potentiometer is superior to voltmeter because

For measuing a potential difference it is more logical to use a potentiometer than a voltmeter. Why?

Assertion : Potentiometer is used only to compare potential differences. Reason: The potentiometer draws current from the voltage source being measured .

Assertion : Potentiometer is used only to compare potential differences. Reason: The potentiometer draws current from the voltage source being measured .

In a potentiometer, potential difference across the potentiometer wire is directly proportional to its

A voltmeter of resistance R is to be used to measure the potential difference across a resistance r . The nearest reading in the absence of voltmeter ?