Question

take ratio of heat produced when two identical resistors of resistance R with the potential difference of V for time T are connected in series and parallel combination​

Answer 1

Let the resistor be R

so when connected in series :

R + R = 2R

When connected in parallel :

1/R + 1/R = 2/R = R/2

Ratio = 2R / (R/2)= 4:1

Heat produced when in series :

I^2R T = I^2 2RT

Heat produced when in parallel:

I^2 R T = I^2 R/2T

so heat produced in series combination is 4 times than heat produced in parallel

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