A small power plant produces a voltage of 6.0 kV and 150 A.The voltage is stepped up to 240 kV by a transformer before it is transmitted to a substation.The resistance of the transmission line between the power plant and the substation is 75 .
-What is the current in the transmission line from the plant to the substation?
A)3.8 A
B)5.2 A
C)6.4 A
D)7.0 A
E)7.5 A

Question

A small power plant produces a voltage of 6.0 kV and 150 A.The voltage is stepped up to 240 kV by a transformer before it is transmitted to a substation.The resistance of the transmission line between the power plant and the substation is 75 .
-What is the current in the transmission line from the plant to the substation?
A)3.8 A 
B)5.2 A 
C)6.4 A 
D)7.0 A 
E)7.5 A

Quizplus · Accepted Answer

The current in the transmission line from the plant to the substation is 3.8 A. This is because the power is constant, and the voltage is increased, so the current must decrease.

A Small Power Plant Produces a Voltage of 6