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Electric Circuits

Electric Circuits
From the circuit diagram shown in question 1 find the Norton current.

 1 A.
 4 A.
 2.5 A.
 2 A.

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

 e-as.
 se-as.
 s(1-e-as).
 (e-as)/s.

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Electric Circuits
For occurrence of resonance which of the following elements are required?

 Both 2 and 3
 L
 C
 R

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Electric Circuits
KVL works on the principle of

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

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 0.5R.
 R.
 4R.
 2R.

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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 decrease if frequency of voltage source increases?

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

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