Explain how electron flow causes electric current with Lorentz – Drude theory of electrons.

How can you verify that the resistance of a conductor is temperature dependent?

Explain Kirchhoff’s laws with examples.

What is a value of $1 \mathrm{kWh}$ in Joules?

Deduce the expression for the equivalent resistance of three resistors connected in parallel.

Silver is a better conductor of electricity than copper. Why do we use copper wire for conduction of electricity?

Draw a circuit diagram for a circuit in which two resistors $A$ and $B$ are connected in series with a battery and a voltmeter is connected to measure the potential difference across the resistor $A$.

Explain overloading of household circuit.