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Electric Circuits

Electric Circuits
In RLC parallel circuit to get Q>1 which of the following is required?

 XL
All of these
 XL>R
 XL=R

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Electric Circuits
Current magnification will occur in which of the following case?

 Parallel resonance
 Both
None of these
 Series resonance

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Electric Circuits
A capacitor

 passes DC but blocks AC.
 blocks both AC and DC.
 passes AC but blocks DC.
 passes both AC and DC.

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Electric Circuits
In the figure, the potential difference between points P and Q is

 - 6 V.
 6 V.
 10 V.
 12 V.

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Electric Circuits
In balanced bridge, if the positions of detector and source are interchanged, the bridge will still remain balanced. This can be explained from which theoem

 Compensation theorem
 Norton's theorem
 Reciprocity theorem
 Thevinin's theorem

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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

 45.5 V.
 50.5 V.
  39.1 V.
  31.9 V.

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