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An alternating current from a source is given by i=10sin314t. What is the effective value of current and frequency of source?

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An alternating current from a source is represented by I= I_(0) sin 314 t. What is the effective value of current ?

A resistor of resistance 100 Omega is connected across an alternate power source given by V = 100 sin 3.14 t . Calculate the rms value of current and frequency of the source.

Knowledge Check

  • A current in circuit is given by i = 3 + 4 sin omegat . Then the effective value of current is :

    A
    5
    B
    `sqrt(7)`
    C
    `sqrt(17)`
    D
    `sqrt(10)`

  • The alternating current from a source is represented by I = 0.5 sin 314 t . The frequecy of a.c. is

    A
    314 Hz
    B
    100 Hz
    C
    50 Hz
    D
    zero

  • The alternating current in a circuit is given by I = 50sin314t . The peak value and frequency of the current are

    A
    `I_(0)`=25 A and f=100Hz
    B
    `I_(0)`=50 A and f=50 Hz
    C
    `I_(0)` = 50 A and f=100 Hz
    D
    `I_(0)`=25 A and f=50 Hz

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    The instantaneous current from an a.c. source is I = 6 sin 314 t . What is the r.m.s value of the current ?

    The emf an source is given by the expression epsi=300 sin 314 t . Write the value of peak voltage and frequency of the source.

    The instantaneous emf an a.c. source is given by epsi=300 sin 314 t . What is the rms value of the emf?

    An alternating current in a circuit is given by I=20sin(100 pi t+0.05 pi) A. The r.m.s value and the frequency of current respectively are

    An alternating current in a circuit is given by l = 20 sin ( 100 pi t + 0.05pi ) A. The rms value and the frequency of current respectively are

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