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Electric Circuits

Electric Circuits
In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current?

 2A
 5A
 10A
 0A

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

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

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Electric Circuits
Third pin of a 3 pin plug is thicker and longer

 for protection purpose.
 for designing purpose.
 all pins are of same size.
 none of these.

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Electric Circuits
If a function is shifted by 'T', then it is correctly represented as

 f (t) u (t).
 f (t) u (t-T).
 f (t-T) u (t-T).
 f (t-T) u (t).

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Electric Circuits
A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest?

 100 Hz.
 1000 Hz.
 1 Hz.
 10 Hz.

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Electric Circuits
Reciprocity condition for h parameters is

 h12 = h21.
 h12 = h21.
 h11h22 - h21h12 = 0.
 h12 = - h21.

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