Question

Derive the expression for equivalent resistance when four resistances connected in series

combination?​

Answer 1

Answer:

When resistors are in parallel, the potential difference (V) across each resistor is the same. A current I entering the combination gets divided into I1, I2, I3 and I4 through R1, R2, R3 and R4 respectively, such that I = I1 + I2 + I3 + I4. where RP is the equivalent or effective resistance of the parallel combination.