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Electric Circuits

Electric Circuits
Which of following materials has the least resistivity ?

  Zinc.
  Copper.
  Lead.
  Mercury.

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Electric Circuits
From the circuit diagram shown in question 1 find the thevnin voltage.

 15 V.
 3 V.
 1.5 V.
 5 V.

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 900
 130
 250
 400

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Electric Circuits
From the circuit diagram shown in question 1 find the maximum power transferred to the load.

 1.875 W.
 15.247 W.
 9 W.
 4.547 W.

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Electric Circuits
The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be

  40 Ω.
 400 Ω.
 4 Ω.
 800 Ω.

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Electric Circuits
For occurrence of resonance which of the following elements are required?

 R
 Both 2 and 3
 C
 L

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MORE MCQ ON Electric Circuits

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