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Electric Circuits

Electric Circuits
What is the SI unit of electric current ?

 Ampere.
None of these
 Ohm.
 Faraday.

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Electric Circuits
Electro-chemical equivalent is usually expressed in

  mg per kW.
  mg per coulomb.
  mg per kVA.
  mg per volt.

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Electric Circuits
Given network is having N nodes and B branches, then number of twigs are

 N.
 B - N + 1.
 N - 1.
 B - N - 1.

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Electric Circuits
The instantaneous values of line current into a delta connected load in any two lines are + 2.5 amps and - 1.25 amps the current in the third line at the instant is ___________ A.

 1
 10
 - 1.25
 2.5

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Electric Circuits
The laplace transform of the fuction f(t) = t is

 1/s.
 s.
 s2.
 1/s2.

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Electric Circuits
In RLC series circuit R = 2Ω, L = 2mH and C = 1μF. Find the time constant of the circuit?

 4 msec
 1 μsec
 2 msec
 2 μsec

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