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Electric Circuits

Electric Circuits
Condition of symmetry in ABCD parameter representation is

 AD - BC = 1.
 A = D.
 C = D.
 B = D.

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Electric Circuits
When AC flows through a pure capacitance then the current

 leads the emf by 90o.
 leads the emf by - 90o.
 is in phase with emf.
 lags the emf by 90o.

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Electric Circuits
The value of unity impulse function at time (t) = 0 is

 1.
 indeterminate.
 infinite.
 0.

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Electric Circuits
The ratio of electric flux density to electric field intensity is called ......... of medium

 capacitance
 permittivity
 permeability
 reluctance

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Electric Circuits
Purpose of using capacitor is / are

 to do phase split in AC 1 phase motor.
 increase p.f of inductive load circuit.
 effect DC filter in electronic circuit.
 all of these.

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Electric Circuits
In foster 1 form 1st element is

 both.
 none.
 inductor.
 capacitor.

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MORE MCQ ON Electric Circuits

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