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Electric Circuits

Electric Circuits
The laplace transform of the fuction f(t) = t is

 1/s2.
 1/s.
 s2.
 s.

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Electric Circuits
KCL works on the principle of which of the following

 both.
 law of conservation of charge.
None of these
 law of conservation of energy.

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Electric Circuits
In RLC parallel circuit if current through capacitor and inductor is equal. Then What is the power factor?

 zero
 lagging
 leading
 unity

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit increase if frequency of voltage source increases?

 VL and VR.
 VL and I.
 Z and I.
 VL and Z.

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Electric Circuits
A branch of a network is said to be active when it consists of one

 voltage source.
 inductor.
 resistor.
 capacitor.

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Electric Circuits
A series RLC circuit is connected across a 240V, 50 Hz supply. When the voltage across capacitor is 250V, a maximum current of 0.5A flows in the circuit. Find the inductance.

 2.25 µF.
 0.47 µF.
 6.37 µF.
 1.58 µF.

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