Home » Current electricity » With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals

With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals

April 15, 2024 by rawan239

10 W

20 W

40 W

60 W

The correct answer is D. 60 W.

The total power dissipated by three resistances connected in parallel is equal to the sum of the power dissipated by each

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resistance. In this case, each resistance dissipates 20 W, so the total power dissipated is 20 W + 20 W + 20 W = 60 W.

Option A is incorrect because it is the power dissipated by a single resistance. Option B is incorrect because it is the power dissipated by two resistances. Option C is incorrect because it is the power dissipated by three resistances in series.

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