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Electric Circuits

Electric Circuits
The lead acid cell should not never be discharged beyond

 2.1 V
 1.9 V.
 2 V.
 1.8 V.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

 2.54 A.
 1.27 A.
 10.16 A.
 5.08 A.

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Electric Circuits
In which braking back emf exceeds supply voltage?

  None of these.
  Regenerative.
  Plugging.
  Dynamic.

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Electric Circuits
The mass of a neutron of atom is

 1.672 × 10 - 26 Kg.
 1.602 × 10 - 19 Kg.
 1.609 × 10 - 31 Kg.
 1.675 × 10 - 27 Kg.

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Electric Circuits
The capacitance of a parallel plate capacitor can be varied by

 changing the overlapping area of the plates only.
 changing the dielectric medium only.
 changing the distance between the plates only.
All of these

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Electric Circuits
Which of following materials has the least resistivity ?

  Zinc.
  Lead.
  Copper.
  Mercury.

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MORE MCQ ON Electric Circuits

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