Three resistors `R_1, R_2, R_3` are to be combined as shown in the figure.

Which combination has lowest resistance. Arrive at the expression for the effective resistance of this combination

Three resistors R_1, R_2, R_3 are to be combined in parallel connection. Arrive at the expression for the effective resistance of parallel combination.

Three resistors 1ohm, 2ohm and 3ohm are combined in series. What is the total resistance of the combination?

An effective resistance R is obtained by connecting 'n' identical resistors each resistance 'r' in series.When connected in parallel,the effective resistance of the combination is

Resistance are used to reduce the current flow in a circuit. Resistance can be connected in series and parallel to obtain the required value of resistance. Derive an expression for the effective resistance when three resistors are connected in parallel.

Three resistors 1Omega , 2Omega and 3Omega are combined in series. What is the total resistance of the combination?

A uniform wire of resistance 40SN is cut into four equal parts and they are connected in parallel. The effective resistance of the combination is