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Electric Circuits

Electric Circuits
Which of the following are the passive elements?

 Both
 Resistor
 None of these.
 Bulb

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Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10- 3 μF.
 10 3 μF.
 10 6 μF.
 10- 6 μF.

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Electric Circuits
Kirchhoff's second law is based on law of conservation of

 energy.
 mass.
 momentum.
 charge.

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Electric Circuits
In 2 port network Z12 = Z21 indicates which property

 unilateral.
 linear.
 bilateral.
 non linear.

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Electric Circuits
A current in a circuit is given by, If the current flows through the 5 Ω resistor, find power dissipated at t = 0?

 15 Watts.
 10 Watts.
 20 Watts.
 40 Watts.

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Electric Circuits
If the dielectric of a capacitor is replaced by conducting material

 the capacitor will get heated up due to eddy currents.
 the plate will get short circuited.
 the capacitance value of the plate will decrease.
 the capacitor can store infinite charge.

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