10 resistors each of resistance R are connected in series to a battery emf E. Then same resistors are connected in parallel to the same battery and current is increased n times. Value of n is:
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10 resistors each of resistance R are connected in series to a battery emf E. Then same resistors are connected in parallel to the same battery and current is increased n times. Value of n is:

G1 Physics · Accepted Answer

Step 1: In series, Rₛ=10R and Iₛ=E/(10R). Step 2: In parallel, Rₚ=R/10 and Iₚ=10E/R. Step 3: Iₚ/Iₛ = 100, hence n=100.