You are helping to design an electricity transmission network. You have two opti

Question

You are helping to design an electricity transmission network. You have two options for the system and are trying to determine which option will be the most efficient. The parameters that define your problem are as follows: • The power plant is supplying power at 500 MW. • The wire to be used has a resistance of 10 Ohms. • You have two options for your transmission voltage, either 100kV or 500kV. For each option, answer the following questions (1-2): 1. What are the electrical current in those wires?

Explanation / Answer

value of current is asked. so use the formula P=VI

p is power V is volatge and I is the current

plug values and solve.

500*10^6=100*10^3I

I=0.0002

for the other case

500*10^6=500*10^3I

I=0.0001

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