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Electric Circuits

Electric Circuits
What is Va in the below circuit?

 (6R + 10) / 3.
 (4R + 10) / 3.
 (3R + 10) / 3.
 (6R - 10) / 3.

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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
Which variety of copper has the best mechanical strength ?

  Cast copper.
  Annealed copper.
  Soft copper.
  Hard drawn copper.

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Electric Circuits
In RL series circuit R=2Ω and L=10mH and applied voltage is 10V DC. Then find the current in the network?

 5A
 1A
 0A
 10A

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

 linear.
 bilateral.
 non linear.
 unilateral.

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Electric Circuits
Condition of symmetry in Z-parameter representation is

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

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