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Electric Circuits

Electric Circuits
Which of following materials has the least resistivity ?

  Lead.
  Zinc.
  Mercury.
  Copper.

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Electric Circuits
Select the wave that has the least value of form factor.

 Sine wave.
 Triangular wave.
 Square wave.
 Rectangular wave.

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Electric Circuits
The electron is lighter than a proton by a factor of about

 184.
 18400.
 18.4.
 1840.

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Electric Circuits
What is a resistor?

 Capacitor
 Inductor
 Test
 Hello

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Electric Circuits
The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be

  2.
 4.
  0.5.
 0.25.

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Electric Circuits
The capacitive reactance of an electric circuit is 50 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 100 Ohms.
 200 Ohms.
 50 Ohms.
 25 Ohms.

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MORE MCQ ON Electric Circuits

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