Four equal resistances are connected in parallel across a certain supply producing a power of P.?

How much power will be produced if the resistances are now connected in series across the same supply?

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  • 8 years ago
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    The resistance value will increase by a factor of 16 in series connection which, If the voltage stays constant, reduces the current also by a factor of 16. The power (=VI) will reduce by a factor of 16. So power dissipated in the series set up = P/16

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