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Transmission lines transmit a voltage of...

Transmission lines transmit a voltage of volt to our houses from power stalions, then the power P supplied by them is proporiional to

A

`(1)/(V)`

B

V

C

`V^(2)`

D

`1/(V^(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The line the draws power supply to your house from street has

    A
    zero average current.
    B
    `220 V` average voltage
    C
    voltage and current out of phase by `90^(@)`
    D
    voltage and current possibly differing in phase `phi` such that `|phi| le pi/2`

  • The power is transmitted from a power house on a voltage AC because

    A
    Electric current travels faster at higher volts
    B
    It is more economical due to less power wastage
    C
    It is difficult to less power voltage
    D
    Chance of stealing transmission lines are minimize

  • A.C. power is transmitted from a power house at a high voltages

    A
    the rate of transmission is faster at high voltages
    B
    it is more economical due to less power loss
    C
    power cannot be transmitted at low voltage
    D
    a precaution against theft of transmission line

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    A: Electrical power through transmission lines is transmitted at high voltage. R: At high voltage theft of power is checked.

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