The potential difference across the terminals of a battery is 8.4 V when there is a current of 1.50 A in the battery from the negative to the positive terminal. When the current is 3.50 A in, the reverse direction, the potential difference becomes 9.4 V. The internal resistance and e.m.f. battery are:

The potential differnce across the terminals of a 3 V battery is 3.6 V, when it is being charged by a current of 1.5 A. What is the internal resitance of the battery?

The potential difference across the terminals of a battery is 50 V when 11 A is drawn and 60V when 1A is drawn . The emf and the internal resistance of the battery are

On increasing the current drawn from a cell, the potential difference across its terminals is lowered why?

When a resistor of 20 Omega is connected in series with a battery, the current is 0.5 A. when a resistor of 10 Omega is connected the current becomes 0.8 A. calculate the emf and the internal resistance of the battery.

A battery of emf 2 volts and internal resistance 0.1 ohm is being charged with a current of 5 amps. What is the potential difference between the two terminal of the battery?

A galvanometer, together with an unknown resistance in series, is connected across two identical batteries of each 1.5 V. When the batteries are connected in series,the galvanometer records a current of 1 A, and when the batteries are connected in parallel, the current is 0.6 A. In this case, the internal resistance of the battery

When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of resistor?

The e.m.f of a cell is 1.5 V. On conneting a 14Omega resistance across the cel, the terminal potential diference falls to 1.4 V. Calcualte the internal resitsnce of thecell.