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Question

The advantage of transmitting power at high voltage is 

A.

magnitude of current will be small 

B.

 it will reduce the voltage drop in the line 

C.

power loss will be less 

D.

all of these

Answer ( Option D)

all of these

Solution

Advantage of transmitting power at high voltage is

1. Percentage voltage drop in resistance decreases with the increases in the system voltage

2. Power loss in the line is inversely proportional to the system voltage and power factor both

3. Efficiency of transmission increases with the increase of supply voltage and power factor.

Hence, the correct option is (D).

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