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For a given AC source the average emf du...

For a given `AC` source the average emf during the positive half cycle

A

depends on `E_(0)`

B

depends on shape of wave

C

both 1 and 2

D

depends only on peak value of `E_(0)`

Text Solution

Verified by Experts

The correct Answer is:
4
`E_(av) = (2 E_(0))/(T) int_(0)^(T//2) sin (omega t) dt = (2 E_(0))/(pi)`
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Knowledge Check

  • If an AC main supply is given to be 220V . What would be the average e.m.f during a positive half cycle?

    A
    `198V`
    B
    `386V`
    C
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    D
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    A
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    B
    `(E_(0))/(sqrt2pi)`
    C
    `(E_(0))/(2pi)`
    D
    `(2E_(0))/(pi)`

  • If instantaneous value of current is I = 10 sin (314 t) A, then the average current for the half cycle will be –

    A
    `10A`
    B
    7.07 A
    C
    6.37 A
    D
    3.53 A

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