A uniform wire of resistance $R$ is cut into two equal pieces, and these pieces are joined in parallel What is the resistance of the combination?

Find the current through the circuit shown in Figure. Also, find the potential difference across the $20 \Omega$ resistor.

Find (a) the equivalent resistance, (b) the current passing through the cell, and, c) the current passing through the $30-\Omega$ resistor in the circuit shown in Figure .

Find the current supplied by the cell in the circuit shown in Figure

In the circuit shown below, calculate the total resistance of the circuit and the current flowing through it.