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Electric Circuits

Electric Circuits
Container of a lead acid battery

 ceramics.
 celluloid.
 molded hard rubber.
 any of above.

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Electric Circuits
Silver coating is provided for

  decorative purpose.
  all of above.
  protective purpose.
  bearing surfaces.

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Electric Circuits
A capacitor is charged by a constant 10 mA current sources which is turned on for 1 second. Assuming the capacitor is initially charge free; determine the charge delivered to and the power supplied by the source if the capacitor has a value of 1 mF.

 0.1C, 100MW.
 0.01C and 5W.
 0.1C, 10MW.
 0.01C, 10MW.

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Electric Circuits
Which of following materials has the least resistivity ?

  Mercury.
  Copper.
  Zinc.
  Lead.

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Electric Circuits
A 2m long conductor, carries a current of 50 A at a magnetic field of 100 × 10 − 3 T. The force on the conductor is

 10 N.
 100 N.
 10000 N.
 1000 N.

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Electric Circuits
In the circuit shown below, what is the voltage across 5 Ω resistor?

 None of them
 -27.4 V.
 -28.4 V.
 34.4 V.

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MORE MCQ ON Electric Circuits

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