$A$ Watt-hour meter measures:

$A$ light bulb is rated at $200 \text{ W}$ for a $220 \text{ V}$ supply. Find the resistance of the bulb. (in $\Omega$)

The emf of a storage battery of a car is $6.0 \ V$. If the internal resistance of the battery is $0.2 \ \Omega$, then the maximum power drawn from the battery is . . . . . . $W$.

Which device can convert all electrical energy into heat?

Which of the following plots may represent the thermal energy produced in a resistor in a given time as a function of the electric current?

What is the value of $1 \, kWh$ in Joules?