If $1800\,C$ of charge passes through an electric bulb in $1$ hour, what is the current flowing through the bulb (in $A$)?

What is the resistance of an electric arc lamp,if the lamp uses $20\, A$ when connected to a $220\, V$ line?

What is the total electric charge on $100$ protons in Coulombs?

$A$ hot plate of an electric oven connected to a $220 \ V$ line has two resistors $A$ and $B$ each of $22 \ \Omega$ resistance. These resistors may be used separately,in series,or in parallel. Find the current flowing in all the three cases.

If the diameter of a conducting wire is doubled,how many times does its resistance become?

Power of a lamp is $60\, W$. Find the energy in joules consumed by it in $1\, s$. (in $, J$)