An electric bulb works on the heating effect of current.

Three resistors $R_{1} = 5 \Omega$,$R_{2} = 10 \Omega$,and $R_{3} = 30 \Omega$ are connected in parallel to a $12 \; V$ battery. Which resistor will have the highest current flowing through it?

Electric power of a circuit is the rate at which work is done in maintaining the electric current in the circuit.

What is the unit of electric potential difference?

Give a single word for $\frac{1 \text{ joule}}{1 \text{ coulomb}}$.

Which has a greater resistance$-$a $100$ $W$ bulb or a $60$ $W$ bulb?