Question

Derive an equation for effective internal resistance and effictive emf when two cells are connected in parallel

Answer 1

Answer:

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Explanation:

In parallel, the potential difference remains the same

By ohm's law,

    V = IR

=> I = V/R

Ieq =  I1 + I2 + .......... In

so, I = V/R1 + V/R2 + ....... V/Rn

    V/R = V(1/R1 + 1/R2 + ....... 1/Rn)

   => 1/Req = 1/R1 + 1/R2 +....... 1/Rn