What are the factors on which the resistance of a conductor depends?

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

What is the equivalent resistance of resistors $R_{1}$ and $R_{2}$ connected in parallel connection?

$A$ current of $1 \ A$ flows in a series circuit containing an electric lamp and a conductor of $5 \ \Omega$ when connected to a $10 \ V$ battery. Calculate the resistance of the electric lamp. Now,if a resistance of $10 \ \Omega$ is connected in parallel with this series combination,what change (if any) in the current flowing through the $5 \ \Omega$ conductor and the potential difference across the lamp will take place? Give reason.

The amount of $2 \ A$ electric current is passed for $1 \ minute$ through a conducting wire. How much total electric charge will pass through this wire (in $C$)?

$1 \, \mu A = \ldots \ldots \ldots \, A$