Please wait...

Alternating Current Test - 37
Menu grid icon
Result Result point icon
Alternating Current Test - 37
  • Goals icon

    /

    Score
  • Trophy icon

    -

    Rank
White alarm icon Time Taken: -
Result frame illustration
  • Question 1/10
    4 / -1
    The potential difference V and the current iflowing through an instrument in an ac circuit of frequency f are given by V = 5 cosωt volts and I = 2 sin ωt amperes (where w = 2 πf). The power dissipated in the instrument is
    Solutions

  • Question 2/10
    4 / -1
    If instantaneous current is given by i = 4 cos (ωt + Φ)) amperes, then the r.m.s. value of current is
    Solutions

  • Question 3/10
    4 / -1
    A generator produces a voltage that is given by V = 240 sin 120 t, where t is in seconds. The frequency and r.m.s. voltage are
    Solutions

  • Question 4/10
    4 / -1
    If E0 represents the peak value of the voltage in an ac circuit, the r.m.s. value of the voltage will be
  • Question 5/10
    4 / -1
    A sinusoidal ac current flows through a resistor of resistance R. If the peak current is Ip, then the power dissipated is
    Solutions

  • Question 6/10
    4 / -1
    200 V, 50 Hz, ac is applied to a resistor. The instantaneous value of voltage is
    Solutions

  • Question 7/10
    4 / -1
    The r.m.s. value of an ac of 50 Hz is 10 amp. The time taken by the alternating current in reaching from zero to maximum value and the peak value of current will be
    Solutions

  • Question 8/10
    4 / -1
    The root mean square value of the alternating current is equal to
  • Question 9/10
    4 / -1

    Solutions

  • Question 10/10
    4 / -1
    In general in an alternating current circuit
Close button icon
User Profile
-

Correct (-)

Wrong (-)

Skipped (-)

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Mockers logo Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Arrow pointer icon
Click on Allow to receive notifications
Notification bell icon ×
Open Now