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In the circuit shown the ammeter 'A' rea...

In the circuit shown the ammeter 'A' reads `2A`. `XY` is a circuit which can either be a resistance of a battery. In the direction of the current there will always be a potential drop across the resistance. Reagarding battery you have to remember that the potential difference across its terminals can be more than its emf or less depending upon whether the battery is delivering the current, or is being charged in the circuit

Assuming `XY` to be a battery with `2 Omega` internal resistance which is being charged, its emf is:

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In the circuit shown the ammeter 'A' reads 2A . XY is a circuit which can either be a resistance of a battery. In the direction of the current there will always be a potential drop across the resistance. Reagarding battery you have to remember that the potential difference across its terminals can be more than its emf or less depending upon whether the battery is delivering the current, or is being charged in the circuit Assuming XY to be a resistor, its value is:

In the circuit shown the ammeter 'A' reads 2A . XY is a circuit which can either be a resistance of a battery. In the direction of the current there will always be a potential drop across the resistance. Reagarding battery you have to remember that the potential difference across its terminals can be more than its emf or less depending upon whether the battery is delivering the current, or is being charged in the circuit The potential difference as you move from Y to X while considering it to be a battery is :

Can the potential difference across a battery be greater than its emf?

Potential difference across the terminal of a non ideal battery is

Potential different across the terminals of the battery shown in figure is

State the condition under which the terminal potential difference across a battery and its emf are equal.

A car battery with a 12V e.m.f. and an internal resistance of 0.04 Omega is being charged with a current of 50A. The potential difference V across the terminals of the battery are:

Assertion : Potential difference across the terminals of a battery is always less than the emf of the battery. Reason : During discharging of a battery potential differnce across to terminals of a battery is V = E -ir therefore V lt E