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Question
Two exactly similar heating resistance are connected (i) in series , and (ii) in parallel, in two different circuits, one by one. If the same current is passed through both the combination, is more heat obtained per minute when they are connected in series or when they are connected in parallel? Give reason for your answer.
Two exactly similar heating resistance are connected (i) in series , and (ii) in parallel, in two different circuits, one by one. If the same current is passed through both the combination, is more heat obtained per minute when they are connected in series or when they are connected in parallel? Give reason for your answer.
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Solution
Heat is more in the circuit in which the resistors are connected in series. This is because the total resistance is more when connected in series. And heat is directly proportional to the resistance.
Hence, more resistance produces more heat.
Heat is more in the circuit in which the resistors are connected in series. This is because the total resistance is more when connected in series. And heat is directly proportional to the resistance.
Hence, more resistance produces more heat.
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