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Problem 1-1: Power of Elements


Find the power of each element. Which one is supplying power and which one is absorbing it?

Power of Elements

Solution

a)  Passive sign convention,  P = V \times I = -8 W < 0 supplying power.


b)  Passive sign convention,  P = V \times I = 8 W > 0 absorbing power.

c)  Passive sign convention,  P = V \times I = 20 W > 0 absorbing power.

d)  Active sign convention,  P = - V \times I = - 50 W < 0 supplying power.

2 thoughts on “Problem 1-1: Power of Elements

  1. can u plz explain the part-d of it.how`s the negative sign come here? bcoz P=VI=5*10=50 which is delivering power.

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