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Electrical energy is transmitted over la...

Electrical energy is transmitted over large distances at high alternating voltages. Which of the following statements is (are) correct?

A

For a given power level, there is a lower current.

B

Lower current implies less power less.

C

Transmission lines can be made thinner.

D

It is easy reduce the voltage at the receving end using step-down transformers

Text Solution

Verified by Experts

The correct Answer is:
1,2,4
According to relation, `P = EI` when `I` is low, powe loss `(= I^(2) R)` is also low. A step down transformer lowers voltage by increasing current.
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