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a) Define electric power express it in terms of potential difference V and resistance R. b) What is meant by saying that the potential difference between two points is 1V? |
Answer» <P> Solution :a) Electric power : it is the rate of doing work by an energy source or the rate at which the electrical energy is dissipated or consumed per unit time in the electric ciruit is called electric power.so, `"Power P"= ("work done (W)")/("time(t)")` `=("Electrical energy dissipated")/("Time(t)")=VI = V^(2)R` b) If 1 I of work is reqired to MOVE a charge of amout IC from one point to another then it is SAID that the potential difference between the two points is1V. |
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