Heating power developed in a resistor R is given by . This implies that the heating power is…
Heating power developed in a resistor R is given by $P = \frac{V^2}{R}$. This implies that the heating power is inversely proportional to resistance. Is this inference correct? Explain.
Answer
Answer
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$P \propto \frac{1}{R}$ when V is constant, i.e., when resistors are connected in parallel. $P \propto R$ when I is constant, i.e., when resistors are connected in series.
From ISC 2027 Specimen Physics Paper 1, question 4(ii).