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Electric Circuits

Electric Circuits
When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is

 12.5 W.
 50 W.
 25 W.
 100 W.

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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 R is

  30.6 V.
  50.8 V.
 24.4 V .
 40.8 V.

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit decrease if frequency of voltage source increases?

 VL and VR.
 VL and Z.
 Z and I.
 VR and I.

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Electric Circuits
In RLC parallel circuit if current through capacitor and inductor is equal. Then What is the power factor?

 unity
 lagging
 zero
 leading

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Electric Circuits
If a function is shifted by 'T', then it is correctly represented as

 f (t-T) u (t).
 f (t) u (t-T).
 f (t) u (t).
 f (t-T) u (t-T).

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Electric Circuits
If N is the number of nodes and b is the number of branches in a network, then rank of tie set matrix is

 N - 1.
 b - N + 1.
 N.
 b - N - 1.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electric Circuits

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