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Electric Circuits

Electric Circuits
Time constant of RL series circuit is

 L/R
 RC
 2RC
 2L/R

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

 1840.
 18400.
 184.
 18.4.

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Electric Circuits
Which of following materials has the least resistivity ?

  Zinc.
  Mercury.
  Copper.
  Lead.

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Electric Circuits
The Laplace Transform of a shifted unit step f (t) = U (t-a) is

 e-as.
 s(1-e-as).
 (e-as)/s.
 se-as.

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Electric Circuits
The unit of resistivity is

 Ω / m².
 Ω - metre.
 Ω.
 Ω / metre.

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Electric Circuits
Magnetic flux has the unit of

 Newton
  Tesla
 Ampere turn
 Weber

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MORE MCQ ON Electric Circuits

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