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Electric Circuits

Electric Circuits
Find the current through 5 Ohm resistor from A to B.

 2A.
 1A.
 -1A.
 -2A.

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Electric Circuits
Condition of symmetry in Z-parameter representation is

 Z12 = Z21.
 Z12 = Z22.
 Z11 = Z22.
 Z11 = Z12.

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Electric Circuits
The linear circuit element is

 all of above.
 capacitor.
 resistor.
 inductor.

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Electric Circuits
Three identical resistor are connected in star across a 3 phase 550 V supply dissipating a total power of 300 W the line current is ____________ A.

 3.149
 2.56
 1
 0.5

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Electric Circuits
A constant current source supplies a electric current of 300 mA to a load of 1 KΩ. When the load changed to 100 Ω, the load current will be

 30 mA.
 100 mA.
 300 mA.
 3 A.

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Electric Circuits
Condition for reciprocity in case of ABCD parameters is

 AD-BC = 1 .
 AB-CD = 1.
 AD-BC = 0.
  AB-CD = 0.

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