A steam turbine at an electric power plant delivers 4 500 kW of power to an electrical generator which converts 94% of this mechanical energy into electrical energy.What is the current delivered by the generator if it delivers at 3 500 V?

Question

Quizplus · Accepted Answer

The electrical power delivered by the generator is given by the formula P = IV, where P is power, I is current, and V is voltage. We can rearrange this formula to get I = P/V. First, we need to find the electrical power output of the generator, which is:
P = 0.94 x 4 500 kW = 4 230 kW
Then we can plug in the values for P and V to find I:
I = 4 230 kW / 3 500 V = 1 209 A
Therefore, the current delivered by the generator is 1.2E+3 A, which is closest to choice C, 1.2E+3 A.

A Steam Turbine at an Electric Power Plant Delivers 4