In the given circuit, the reading of ideal voltmeter is `E//2`. The internal resistance of the battery is

High resistance voltmeter connected across a cell reads 2 volt. When a resistance of 19 Omega , is connected in the cell circuit, voltmeter reading drops to 1.9 volt. The internal resistance of the cell is

In the given circuit, the ratio of voltmeter reading to the ammeter reading is R' . If resistance of ammeter is RA and that of voltmeter RV , then

If the reading of the ideal voltmeter shown in the circuit is 2V the internal resistance of the two identical cells is

If the reading of the ideal voltmeter shown in the circuit is 2V the internal resistance of the two identical cells is

Reading of an ideal voltmeter in the circuit below is

In the following circuit, determine the reading of ideal voltmeter (V) and ideal ammeter (A).

A battery of e.m.f 3 V supplies current through a circuit in which the resistance can be changed. A high resistance voltmeter is connected across the battery. When the current is 1.5 A, the voltmeter reads 2.7 V. Find the internal resistance of the battery.

When an ammeter of negligible internal resistance is inserted in series with circuit, it reads 1 A . When a voltmeter of very large resistance is connected across R_(1) , it reads 3 V . But when the points A and B are short-circuited by a conducting wire, then the voltmetre measures 10.5 V across the battery. The internal resistance of the battery is equal to

When an ammeter of negligible internal resistance is inserted in series with circuit, it reads 1 A . When a voltmeter of very large resistance is connected across R_(1) , it reads 3 V . But when the points A and B are short-circuited by a conducting wire, then the voltmetre measures 10.5 V across the battery. The internal resistance of the battery is equal to

In the circuit figure, the voltmeter reads 30 V. The resistance of the voltmeter is