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Electric Circuits

Electric Circuits
Which of the following is the correct relation?

 AD-BC = 1.
 all of these.
 AC-BD = 1.
 AB-CD = 1 .

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Electric Circuits
Time constant is the time taken for response to rise -------of maximum value?

 68.3%
 63.2%
 90%
 100%

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

 -1A.
 2A.
 1A.
 -2A.

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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.

 2 Ω.
 1 Ω.
 4 Ω.
 3 Ω.

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Electric Circuits
The value of supply voltage for 400 W, 4 Ω load is

 40 V.
 200 V.
 20 V.
 400 V.

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Electric Circuits
In RLC series circuit R = 2Ω, L = 2mH and C = 1μF. Find the time constant of the circuit?

 1 μsec
 4 msec
 2 μsec
 2 msec

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