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.

A bulb is rated $5.0 \mathrm{V}, 100 \mathrm{mA}$. Calculate its rated power and resistance.