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Electric Circuits

Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 1 W.
 5 W.
  64 W.
 10 W.

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

 s(1-e-as).
 e-as.
 se-as.
 (e-as)/s.

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Electric Circuits
Two point charges of 4μC are placed at a distance of 3 cm apart from each other in free space. Force acting on two charges will be

 100 N
 0.02 N
 400 N
 160 N

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Electric Circuits
Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be

 160 µF
 5 µF
 40 µF
 10 µF

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Electric Circuits
Flux in a magnetic circuit can be compared in an electric circuit to

 inductance.
 resistance.
 current.
 voltage.

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Electric Circuits
In a capacitive circuit, the capacitive reactance is

 directly proportional to frequency
 directly proportional to the square of frequency
 indirectly proportional to the square of frequency
 indirectly proportional to frequency

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