Why does parallel combination of resistors cause less heating. give reason
Answers
Answer:
Heat results from the power dissipated in the resistors, and for a parallel combination of resistors, Power dissipated = Sum of [voltage, squared, divided by each resistor’s resistance.]More resistors in parallel simply add more E^2/R.
If the resistors are in SERIES across the voltage supplied, each resistor gets less voltage across it than if they were all in parallel, so as more resistors are added in series, the term R in E^2/R keeps increasing, so P decreases, hence the dissipated heat decreases.
Hope it helps you....
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Explanation:
The resistance itself doesn’t matter, whether it’s high or low.
Heat results from the power dissipated in the resistors, and for a parallel combination of resistors, Power dissipated = Sum of [voltage, squared, divided by each resistor’s resistance.]
More resistors in parallel simply add more E^2/R.
If the resistors are in SERIES across the voltage supplied, each resistor gets less voltage across it than if they were all in parallel, so as more resistors are added in series, the term R in E^2/R keeps increasing, so P decreases, hence the dissipated heat decreases.
Hope it will help you