When a 12V 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 the resistor.

A 6V battery is connected to a bulb of resistance of 12 ohms. Find the current through the bulb

If the rms current through a 6.8kΩ resistor is 8mA, Find the rms voltage drop across the resistor.

Two 6 ohm resistances are connected in parallel and a 12 V battery is connected across the combination. Find the current flowing through each of the resistances.

As shown in the diagram, network of resistors R_1 and R_2 extends off to infinity of the right. Find the equivalent resistance.

The potential difference between the terminals of a cell in open circuit is 2.2V. When it is connected through a resistance of 5 ohm , the P.D. falls to 1.8V. Find the internal resistance of the cell.

A 10 μF capacitor is connected across a 200 V, 50 Hz A.C. supply. Find the peak current through the circuit