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Electric Circuits

Electric Circuits
The life of a lead acid battery is expected to be

 10 to 15 years.
 1 year.
 6 months.
 2 to 5 years.

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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

 10000 N.
 1000 N.
 10 N.
 100 N.

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Electric Circuits
In RL series circuit R=2Ω and L=10mH and applied voltage is 10V DC. Then find the current in the network?

 1A
 0A
 5A
 10A

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Electric Circuits
Silver coating is provided for

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

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit increase if frequency of voltage source increases?

 VL and I.
 Z and I.
 VL and VR.
 VL and Z.

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Electric Circuits
Which of the followings is the expression for energy stored in a capacitor?

 Cv.
 (1 / 2) Cv2.
 C / v.
 C dv / dt.

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MORE MCQ ON Electric Circuits

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