A voltmeter of 20 V range and 50000`Omega` in connected in series with a resistor of `30000Omega` by mistake. If the emf of the battery to which they are connected is 6V what will be the reading of the voltmeter?

A voltmeter of range of 10 V and resistance 5000 Omega is connected in series with a battery and a resistor of 500Omega by mistake. If the voltmeter reading is 8V, what is the emf of the battery? (Neglect internal resistance of battery).

The resistance of 100 Omega and 200 Omega are connected in series with the 220 V mains. When a voltmeter of 1000 Omega resistance is connected in parallel to 100 Omega , then the reading of voltmeter is –

A voltmeter of resistance 1000 Omega is connected across a resistance of 500 Omega in the given circuit. What will be the reading of voltmeter

Resistance of 100 Omega and 200 Omega are connected in series with 220 V mains. When a voltmeter of 1000 Omega resistance is connected in parallel to 100 Omega , then the reading of voltmeter is

Eight cells marked 1 to 8, each of emf 5 V and internal resistance 0.2 Omega are connected as shown. What is the reading of ideal voltmeter ?

A voltmeter of resistances 400(Omega) is used to measure the potential difference across the 100(Omega) resistor in the circuit shown in figure.(a) What will be the reading of the voltmeter ?(b) What was the potential difference across 100(Omega) before the voltmeter was connected ?

An ideal voltmeter V is connected to a 2.0 Omega resistor and a battery with emf 5.0 V and internal resistance 0.5 Omega as shown in figure (a) What is the current in the 2.0 Omega resistor? (b) What is the terminal voltage of the battery? (c) What is the reading of the voltmeter?

A voltmeter has a resistance of 50 Omega is connected across a cell of e.m.f. 2V and internal resistance 10 Omega . The reading of voltmeter is