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Electric Circuits

Electric Circuits
The Laplace Transform of a shifted unit step f (t) = U (t-a) is

 s(1-e-as).
 (e-as)/s.
 se-as.
 e-as.

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Electric Circuits
Which field is associated with the capacitor?

 Both of (A) and (B).
 Electric.
 None of above.
 Magnetic.

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Electric Circuits
The maximum current rating for a 10 k Ω, 0.5 W resistor is

 14.14 mA.
 7.07 mA.
 0.707 mA.
 28.28 mA.

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Electric Circuits
If all the elements in a particular network are linear, then the superposition theorem would hold, when the excitation is

 An Impulse
 AC only
 Either AC or DC
 DC only

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Electric Circuits
Laplace transform analysis gives

 frequency domain response only.
 both (a) and (b).
 real response only.
 time domain response only.

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Electric Circuits
Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be

 36.36.
 76.66.
 40.25.
 66.66.

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