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Electric Circuits

Electric Circuits
Container of a lead acid battery

 any of above.
 molded hard rubber.
 celluloid.
 ceramics.

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Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (3 + j4) pu
 (4 + j2 ) pu
 (4 + j3) pu
 (2 + j4) pu

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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

  31.9 V.
  39.1 V.
 50.5 V.
 45.5 V.

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Electric Circuits
Transients are presents in the circuit when the circuit is having

 R.
 L.
 Either L or C.
 C.

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Electric Circuits
In above question, determine the current if E = 100 V, R = 20Ω, R1 = 10 Ω and L = 2 H at 0.5 sec after short circuit.

 9.59.
 - 6.28.
 - 9.59.
 6.98.

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Electric Circuits
For symmetrical wave form average value of one full cycle is

 1.11
 1
 2.22
 0

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