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Electric Circuits

Electric Circuits
In RLC series circuit R = 2Ω, L = 2mH and C = 1μF. Find the time constant of the circuit?

 4 msec
 2 msec
 1 μsec
 2 μsec

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Electric Circuits
The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be

 107.14 rpm in forward direction.
 5250 rpm in forward direction.
 107.14 rpm in reverse direction.
 5250 rpm in reverse direction.

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Electric Circuits
Which of following capacitor will have least value of breakdown voltage?

 Paper.
 Ceramic.
 Mica.
 Electrolytic.

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Electric Circuits
A periodic voltage having the Fourier series V(t)= {1 + 4sinω0t}

 11 W.
 1 W.
 21 W.
 24.5 W.

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Electric Circuits
The value of V in the circuit shown in the given figure is

  3 V.
  2 V.
 5 V.
 4 V.

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Electric Circuits
In RLC parallel circuit current through resistor, inductor and capacitor are 10A, 5A and 5A respectively. What is the total current in the circuit?

 20A
 5A
 0A
 10A

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