Question

Choose the option A student set up three different types of circuits as shown in the following circuit diagrams, he observed that the heat produced in the resistor or combination of resistors connected to a 12 V battery will be * 1 point Captionless Image (i)same in all the cases (ii)minimum in the case (i) (iii)maximum in case (ii) (iv)maximum in case (iii)

Answer 1

Heat is Produced Maximum in Case (iii)

Explanation:

In case (i),

R = 2Ω

In case (ii),

R = 2+2 = 4Ω

In case (iii),

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

=> R = 1Ω

Since H = V²/ R*t

As voltage in the three cases for equivalent resistance is same

so,

H∝1/R

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