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Electric Circuits

Electric Circuits
Bulb in street lighting are connected in

 series.
 series parallel.
 end of end.
 parallel.

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Electric Circuits
In a capacitor, the electrical energy is stored in

 none of above.
 electric field.
 magnetic field.
 both ‘electric field’ and magnetic field’.

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Electric Circuits
If 1 A current flows in a circuit, the number of electrons flowing through this circuit is

 1.6 × 1019
 1.6 × 10 - 19
 0.625 × 10 - 19
 0.625 × 1019

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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 voltage drop across L is

 50.5 V.
  31.9 V.
 45.5 V.
  39.1 V.

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

 (e-as)/s.
 s(1-e-as).
 e-as.
 se-as.

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Electric Circuits
Two resistors R1 and R2 give combined resistance of 4.5 Ohm when connected in series and 1 Ohm when in parallel, the resistances are

 1.5 Ohm and 3 Ohm.
 2 Ohm and 2.5 Ohm.
 1.25 Ohm and 3.25 Ohm.
 2.2 Ohm and 2.3 Ohm.

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MORE MCQ ON Electric Circuits

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