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Electric Circuits

Electric Circuits
Fall time is the time required for a pulse to decrease from 90 to ________% if its maximum values

 5
 15
 20
 10

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Electric Circuits
A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the current in the circuit?

 0.1465 A.
 0.1578 A.
 0.2547 A.
 0.4583 A.

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Electric Circuits
A branch of a network is said to be passive when it contains

 current source.
 voltmeter.
 battery.
 voltage source.

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Electric Circuits
To reduce hysteresis loss, we use

 laminated sheets.
 copper bars.
 soft-iron.
 CRGO steel.

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Electric Circuits
Constant K type HPF (high pass filter) having cut off frequency 12 KHz and nominal impedance Ro = 500 Ω Find shunt arm inductor L and series arm capacitance C for T and π section of HPF ?

 L = 3.316 mH, C = 132 μF.
 L = 3.316 mH, C = 0.0132 μF.
 L = 0.0132 mH, C = 0.0132 μF.
 None of these.

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Electric Circuits
Unit step function is first derivative of

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

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MORE MCQ ON Electric Circuits

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