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Electric Circuits

Electric Circuits
Time constant of RC series circuit is

 2L/R
 RC
 L/R
 2RC

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Electric Circuits
Unit step function is first derivative of

 impulse function.
 ramp function.
 gate function.
 parabolic function.

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

 2/31.
 3/41.
 -3.
 3.

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Electric Circuits
Total instantaneous power supplied by a 3 - φ AC supply to a balanced RL load is

 pulsating with non zero average.
 constant.
 pulsating with zero average.
 zero.

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Electric Circuits
The Norton equivalent of a network is given as IN = 4A and RN = 2 Ohm. When this circuit is connected across a 2 Ohm load, the current through the load is

 1 A.
 0 A.
 4 A.
 2 A.

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Electric Circuits
Two resistances R1 and R2 are connected in series across the voltage source where R1 > R2. The largest drop will be across

 either R1 or R2.
 R2.
 none of them.
 R1.

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