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In the following circuits, the heat produced in the resistor or combination of resistors connected to a 12 V battery will be

(a) same in all the cases 

(b) minimum in case (i) 

(c) maximum in case (ii) 

(d) maximum in case (iii)

1 Answer

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The answer is (c) maximum in case(ii)

Here two transistors are in series. In figure (iii) total resistance will be less than individual resistances as they are connected parallel. Higher resistance produces more heat hence option c) is the right answer.

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