Resistance of a circuit is defined as the ratio of the voltage applied to the electric current which flows through it. In a circuit connected in series, the total resistance is found by simply adding up all the resistance values of the individual resistors, whereas in parallel it is found by adding up the reciprocals of the resistance values, and taking the reciprocal of the total. Calculate total resistance in series and parallel circuit using this total resistance calculator.
If the total voltage, current and power of a parallel circuit are 10 V, 15 A and 20 W, then
Total Resistance(R1) = 10/15 = 0.6667 ohm
Total Resistance(R2) = 100 / 20 = 5 ohm
Total Resistance(R3) = 20 / 225 = 0.0889 ohm