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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit 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?

180°
30°
90°
45°

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AC Fundamentals, Circuit and Circuit Theory
The purpose of a parallel circuit resonance is to magnify

Frequency
Voltage
Current
Power

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AC Fundamentals, Circuit and Circuit Theory
In AC. circuits, laminated iron is invariably used in order to

Increase heat radiation
Make assembly cheap and easier
Reduce circuit permeability
Reduce eddy current loss

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AC Fundamentals, Circuit and Circuit Theory
In a sine wave the slope is constant

Between 0° and 90°
No where
Between 180° and 270°
Between 90° and 180°

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AC Fundamentals, Circuit and Circuit Theory
Capacitors for power factor correction are rated in

kW
kVAR
kVA
kV

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AC Fundamentals, Circuit and Circuit Theory
In an A.C. circuit power is dissipated in

None of the listed here
Inductance only
Resistance only
Capacitance only

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