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 the resistor.

A 50V battery is connected across a 10 ohm resistor. The current is 4.5A is flowing through the resistor then the internal resistance of the battery is

Three identical resistors are connected in parallel and total resistance of the circuit is R/3. Find the value of each resistance.

When a battery connected across a resistor of 16Omega , the voltage across the resistor is 12 V. When the same battery is connected across the resistor of 10Omega voltage across it is 11 V. The internal resistance of the battery in ohm is

The current in a circuit containing a battery connected to 2Omega resistance is 0.9A. When a resistance of 7Omega is connected to the same battery, the current observed in the circuit is 0.3A. Then the internal resistance of the battery.

When an inductor L and a resistor R in series are connected across a 12 v, 50 Hz supply a current of 0.5 A flows in the circuit . The current differs in the phase from applied voltage by (pi)/(3) radian . Then the value of R is

An ideal battery passes a current of 5A through a resistor. When it is connected to another resistance of 10Omega in parallel, the current is 6A. Find the resistance of the first resistor.