Resistance In Parallel

The effective resistance of a circuit containing resistances in parallel is

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

Questions|Combination Of Resistance|Series Combination Of Resistance |Parallel Combination Of Resistance|Questions|Quiz

Two conductors A and B resistance 5 omega and 10 omega respectively are first joined in parallel and then in series. In each case the voltage applied is 20 V. Equivalant resistance in parallel combination is:

Resistance |Series Combination Of Resistance|Parallel Combination Of Resistance|Current Divider Rule|Questions

Two metallic wires A and B are connected in parallel. Wire A has length l and radius r, wire B has a length 2 l and radius 2r. Compute the ratio of the total resistance of parallel combination and the resistance of wire A.

In series, potential difference distributes in direct ratio of resistance and in parallel current is distributed in inverse ratio of resistance In the circuit shown in figure

The total resistance in the parallel combination of three resistances 9Omega, 7Omega and 5Omega