Application of Modified Characteristics MCQ

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• Calculate the active power in a 5 Ω resistor with 5 A current flowing through it.
  ক

  125 W

  খ

  110 W

  গ

  115 W

  ঘ

  126 W
• Calculate the active power in a 241 H inductor.
  ক

  21 W

  খ

  11 W

  গ

  0 W

  ঘ

  .51 W
• Calculate the active power in a 19 F capacitor.
  ক

  7.8 W

  খ

  0 W

  গ

  5.4 W

  ঘ

  1.5 W
• Calculate the active power in a 41 H inductor.
  ক

  2 W

  খ

  1 W

  গ

  0 W

  ঘ

  .5 W
• The slope of the V-I curve is 19°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.
  ক

  .3254 Ω

  খ

  .3608 Ω

  গ

  .3543 Ω

  ঘ

  .3443 Ω
• Calculate the value of the frequency if the inductive reactance is 45 Ω and the value of the inductor is 15 H.
  ক

  0.477 Hz

  খ

  0.544 Hz

  গ

  0.465 Hz

  ঘ

  0.412 Hz
• What is the unit of the admittance?
  ক

  ohm

  খ

  ohm-1

  গ

  ohm2

  ঘ

  ohm.5
• R.M.S value of the trapezoidal waveform V=Vmsin(Ωt+α).
  ক

  Vm÷2½

  খ

  Vm÷2¼

  গ

  Vm÷2¾

  ঘ

  Vm÷3½
• Calculate the moment of inertia of the solid sphere having a mass of 28 kg and diameter of 15 cm.
  ক

  0.01575 kgm2

  খ

  0.01875 kgm2

  গ

  0.01787 kgm2

  ঘ

  0.01568 kgm2
• Calculate the phase angle of the sinusoidal waveform x(t)=20sin(9πt+π÷7).
  ক

  π÷9

  খ

  π÷5

  গ

  π÷7

  ঘ

  π÷4
• The generated e.m.f from 42-pole armature having 74 turns driven at 64 rev/sec having flux per pole as 21 mWb, with wave winding is ___________
  ক

  4177.171 V

  খ

  4177.152 V

  গ

  4100.189 V

  ঘ

  4190.454 V
• Calculate the time period of the waveform y(t)=74cos(81πt+π).
  ক

  .024 sec

  খ

  .027 sec

  গ

  .023 sec

  ঘ

  .025 sec