A.C. Fundamentals | Circuits and Circuit Theory

The transient currents are associated with the____________?

Byadmin December 11, 2018July 18, 2021

The transient currents are associated with the____________?

A. changes in the stored energy in the inductors and capacitors
B. impedance of the circuit
C. applied voltage to the circuit
D. resistance of the circuit

A.C. Fundamentals | Circuits and Circuit Theory

The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of_______degrees?

The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of_______degrees?

A. 90
B. 60
C. 45
D. 30

Read More The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of_______degrees?
A.C. Fundamentals | Circuits and Circuit Theory

An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?

An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?

A. the current through the resistance is more
B. the current through the resistance is less
C. both resistance and inductance carry equal currents
D. none of the above

Read More An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?
A.C. Fundamentals | Circuits and Circuit Theory

In a three-phase supply floating neutral is undesirable because it way give rise to___________?

In a three-phase supply floating neutral is undesirable because it way give rise to___________?

A. high voltage across the load
B. low voltage across the load
C. unequal line voltages across the load
D. minimun voltage across the load

Read More In a three-phase supply floating neutral is undesirable because it way give rise to___________?
A.C. Fundamentals | Circuits and Circuit Theory

Time constant of an inductive circuit_________?

Time constant of an inductive circuit_________?

A. increases with increase of inductance and decrease of resistance
B. increases with the increase of inductance and the increase of resistance
C. increases with the decrease of inductance and decrease of resistance
D. increases with decrease of inductance and increase of resistance

Read More Time constant of an inductive circuit_________?
A.C. Fundamentals | Circuits and Circuit Theory

What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?

What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?

A. 0°
B. 45°
C. 90°
D. 180°

Read More What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?
A.C. Fundamentals | Circuits and Circuit Theory

For a sine wave with peak value Emax _______ 8.30. the average value is?

For a sine wave with peak value Emax _______ 8.30. the average value is?

A. 0.636 Emax
B. 0.707 Emax
C. 0.434 EWc
D. lAUEmax

Read More For a sine wave with peak value Emax _______ 8.30. the average value is?

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