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An alternating current is given by the e...

An alternating current is given by the equation `I=i_1sinomegatcosomegat`.The rms current is given by

A

`(i_2+i_1)//sqrt2`

B

`(i_2-i_1)//sqrt2`

C

`sqrt({(i_1^2+i_2^2)//2})`

D

`sqrt({(i_1^2+i_2^2)//(sqrt2)})`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • The current I in the circuit shown is

    A
    1.33 A
    B
    Zero
    C
    2.00 A
    D
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    B
    the time taken by the current to reach maximum value `I_0` from zero is `pi/(4omega)`
    C
    the time taken by the current to reach rms value from zero is `pi/(4omega)`
    D
    the time taken by the current to reach `-I_0` from zero is `pi/omega`

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