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Electric Circuits

Electric Circuits
Magnetic flux has the unit of

 Newton
  Tesla
 Weber
 Ampere turn

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Electric Circuits
For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R.

 3 Ω.
 2 Ω.
 4 Ω.
 1 Ω.

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Electric Circuits
One ampere hour charge is equivalent to

 36000 coulombs.
 36 coulombs.
 360 coulombs.
 3600 coulombs.

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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

 DC only
 An Impulse
 Either AC or DC
 AC only

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Electric Circuits
A capacitor of 50 microfarad is connected in series with a resistance of 120 Ω. If above circuit is connected across 240 V, 50 Hz 1 - φ supply. Find the capacitive reactance?

 135.86 Ω.
 1.765 Ω.
 63.7 Ω.
 0.015 Ω.

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Electric Circuits
Find the Z parameters of the circuit shown in figure.

 Z11 = 1; Z12 = 1; Z21 = 1; Z22 = 1
 Z11 = 2; Z12 = 1; Z21 = 1; Z22 = 2
 Z11 = 3; Z12 = 1; Z21 = 1; Z22 = 3
 Z11 = 3; Z12 = 3; Z21 = 3; Z22 = 3

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