- For resistors in parallel, the reciprocal of the equivalent resistance is the sum of the reciprocals of individual resistances: $\frac{1}{R_p} = \frac{1}{R_1} + \frac{1}{R_2} + ...$ - For resistors in series, the equivalent resistance is the sum of individual resistances: $R_s = R_1 + R_2 + ...$
What is the total resistance in the following circuit element ? [Image of a circuit diagram with three resistors labelled R. Two are in parallel, and this combination is in series with the third resistor.]
Asked in UPSC NDA 1 2023 · Topic: Electric Current (Series and parallel combination of resistors)
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