Question

Derive an expression to find the equivalent resistance of two resistors connected in parallel
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Answer 1

Answer:

When two resistors are connected in parallel then current flowing through these resistors is different .So,

I = I1+I2 (I= total current)

V/R = V/R1+V/R2 ( Voltage flowing through two different resistors connected in parallel is same) (since V= IR so I= V/R)

V/R = V ( (1/R1) / (1/R2) )

1/R = 1/R1 + 1/R2

Hence, derived.

Answer 2

Answer:

Above written answer is correct