For the measurement of potential difference, voltmeter is connected

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

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

A potential of 400 V is applied at the point A . The value of resistance R_(1)=1000 Omega , R_(2)=2000Omega and R_(3)=1000Omega are connected between points A and G as shown in the figure. Point G is earthed. The measured potential difference by an ideal voltmeter connected across R_(2) is

A potential of 400 V is applied at the point A . The value of resistance R_(1)=1000 Omega , R_(2)=2000Omega and R_(3)=1000Omega are connected between points A and G as shown in the figure. Point G is earthed. The measured potential difference by an ideal voltmeter connected across R_(2) is

Two resistances of 400 ohm and 800 ohm are connected in series with 6 volt battery of negligible internal resistance. A voltmeter of resistance 10,000ohm is used to measure the potential difference across 400 ohm. The error in the measurement of potential difference in volt approximately .

Take a battery and measure the potential difference. Make a circuit and measure the potential difference when the battery is connected in the dircuit. Is there any difference in potential difference of battery ?