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Electric Circuits

Electric Circuits
In the figure given, the value of R is

 24 Ω.
 12 Ω.
 18 Ω.
 10 Ω.

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Electric Circuits
A two port network is defined by the relation The value of Z12 is

 -3.
 2/31.
 3.
 3/41.

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 60.
 105.
 75.
 15.

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Electric Circuits
In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant?

 2 msec
 4 msec
 4 μsec
 2 μsec

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Electric Circuits
Energy efficiency during electroplating is usually in the range

 50 to 80%.
 85 to 90%.
 90 to 99%.
 80 to 85%.

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Electric Circuits
The equation for 25 cycles current sine wave having rms value of 30 amps, will be

 42.4sin25πt.
 42.4sin50πt.
 30sin50πt.
 30sin25πt.

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MORE MCQ ON Electric Circuits

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