Question

Two identical cells of negligible internal resistance, are connected in (A) series and in (B) parallel with each other. Find the ratio of currents through a load resistance R in the two cases

Answer 1

Answer:

2

Explanation:

Two identical cells of negligible internal resistance, are connected in (A) series and in (B) parallel with each other. Find the ratio of currents through a load resistance R in the two cases

Let each cell has Voltage = V

In series Voltage of cells be doubled = 2V

Current = 2V/R

in Parallel Voltage of cells would be = V

Current = V/R

Current in Series / Current in Parallel =  (2V/R)/(V/R)  = 2

the ratio of currents through a load resistance R in the two cases = 2