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Electric Circuits

Electric Circuits
A two port network is defined by the relation The value of Z12 is

 3.
 3/41.
 2/31.
 -3.

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Electric Circuits
Current locus is obtained by which of the following?

 Either of these
 Varying any one of the circuit element
 Varying source frequency
None of these

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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.

 1 Ω.
 3 Ω.
 2 Ω.
 4 Ω.

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Electric Circuits
In RLC series circuit, at resonance condition the value of current is

 Minimum
None of these
 Maximum
 Zero

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Electric Circuits
A voltage source having an open circuit voltage of 100 V and internal resistance of 50 Ω is equivalent to a current source

 2 A with 50 Ω in parallel.
 2 A with 50 Ω in series.
 none of these.
 0.5 A in parallel with 50 Ω.

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Electric Circuits
The resistance of 100 W, 200 V lamp is

 400 Ω.
 200 Ω.
 1600 Ω.
 800 Ω.

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