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

When do we say that the resistors are connected in parallel?

In an electric circuit,state the relationship between the direction of conventional current and the direction of flow of electrons.

Explain how do we classify materials as conductors and insulators on the basis of their resistance.

The rating of an electric heater is $1100 \ W, 220 \ V$. Calculate its resistance when it operates at $220 \ V$. Also,calculate the energy consumed in $kWh$ in the month of November,if the heater is used daily for four hours at the rated voltage.

Define resistance of a conductor. State the factors on which resistance of a conductor depends. Name the device which is often used to change the resistance without changing the voltage source in an electric circuit.
Calculate the resistance of $50 \, m$ length of wire of cross-sectional area $0.01 \, mm^2$ and of resistivity $5 \times 10^{-8} \, \Omega \, m$.