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zubka84 [21]
3 years ago
12

Lus

Physics
1 answer:
patriot [66]3 years ago
7 0

Answer:

hey but the person at the top is right

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The voltage across the terminals of an ac power supply varies with time according to V=V0cos(t). The voltage amplitude is V0 = 4
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Answer:

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Explanation:

A) We are told that;

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Now, the formula for the root-mean-square potential difference Vrms is given as;

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B) Due to the fact that the voltage is sinusoidal from the given V = V_o cos ωt, we can say that the average potential difference Vav between the two terminals of the power supply would be zero.

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