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Electric Circuits

Electric Circuits
Condition of symmetry in ABCD parameter representation is

 C = D.
 AD - BC = 1.
 A = D.
 B = D.

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Electric Circuits
Three capacitors each of capacity C are given. The resultant capacity (2/3) C can obtained by using them

 two in parallel and third in series with this combination.
 all in parallel.
 two in series and third in parallel across this combination.
 all in series.

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Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 1 W.
  64 W.
 5 W.
 10 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 current in R is

 5.08 A.
 10.16 A.
 1.27 A.
 2.54 A.

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Electric Circuits
By which of the following elements transients will not occur?

 L
 R
All of these
 C

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Electric Circuits
Resistance of which material does not change with change in temperature?

 Tungsten.
 Platinum.
 Metal alloys constantan and manganin.
 Brass.

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