Question

Which of the four resistances generate the greatest amount of heat when a current flows from A to B?(a) P(b) Q(c) R(d) S.

Answer 1

(a) is the correct option

Answer 2

The resistance which generate maximum amount of heat in the given circuit is the resistance of 4 Ohm. Hence the correct option to the given question is option number b.

While electric current pass through a resistor, some work is done in the resistor which results in heating up the resistor because of joules heat. And this amount of work is directly proportional to the resistance of the resistor. Since the resistance in the given circuit is maximum at 4 Ohm, hence it is the correct option.