To get maximum current through a resistance of 2.5

Asked by admin @ in Physics viewed by 242 People

To get maximum current through a resistance of 2.5Ω, one can use ‘m′ rows of cells, each containing ‘n′ cells connected in series. The internal resistance of each cell is 0.5Ω. What are the values of n and m if the total numbers of cells are 45?

Answered by admin @


Mn = 45
for maximum current R = nr/m
=>2.5=(0.5)n/m
=>5m=n
=>5m=45/m
=>m^2=9
=>m=3
then n=15
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