Find an expression for equivalent resistance of three resistors joined in parallel.

Find an expression for the equivalent resistance of three resistors joined in series.

Obtain an expression for equivalent resistance of two resistors connected in parallel.

Obtain an expression for equivalent resistance of two resistors connected in a series combination.

Obtain the expression for the equivalent resistance for 3 resistors connected in parallel and also write the expression of equivalent resistance for connection of' n' resistors.

State Ohm's law. Derive an expression for the equivalent resistance of a number of resistances in parallel.

Derive the equation of equivalent resistance of resistors connected in parallel.