Question

Derive the relation for equivalent resistance when three resistance are connected in parallel.
CBSE Class X Science

Answer 1

Explanation:

Voltage for each resistance is same in parallel.

So, I = I1 + I2 + I3

V/R = V/R1 + V/R2 + V/R3

1/R = 1/R1 + 1/R2 + 1/R3

R = R1R2R3/(R1R2 + R2R3 + R3R1)

Answer 2

Explanation:

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