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An alternating current is given by the equation i=i_(1)sin ω t+i_(2)cosω t .The rms current will be :

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Knowledge Check

  • An alternating current is given by the equation i=i_1sinomegat+i_2cosomegat . The rms current will be

    A
    `1/sqrt2(i_1^2+i_2^2)^(1/2)`
    B
    `1/sqrt2(i_1+i_2)^2`
    C
    `1/2(i_1^2+i_2^2)^(1/2)`
    D
    `1/sqrt2(i_1+i_2)`

  • An AC is given by the equation i=i_(1)cos omegat+i_(2)sin omegat . The r.m.s. current is given by

    A
    `(I_(1)+I_(2))/2`
    B
    `((I_(1)+I_(2))^(2))/(sqrt(2))`
    C
    `1/(sqrt(2)) sqrt(I_(1)^(2)+I_(2)^(2))`
    D
    `(I_(1)^(2)+I_(2)^(2))/2`

  • An alternating current is given by I = i_1 cos omegat + i_2 sin omegat . The rms current is given by

    A
    `(i_1 + i_2)/(sqrt2)`
    B
    `(|i_1 + i_2|)/(sqrt2)`
    C
    `sqrt((i_1^2 + i_2^2)/(2)`
    D
    `sqrt((i_1^2 + i_2^2)/(sqrt2)`

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