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WorksheetsAlternating Current
Total questions: 10
Worksheet time: 6mins
AC generators used to produce alternating current by converting
kinetic energy into potential energy
potential energy into electrical energy
kinetic energy into electrical energy
electrical energy into kinetic energy
AC generators works based on
Faraday's Law
Lenz Law
Newton's Law
electrostatic law
In AC generator, maximum emf generated at an angle of
0 and 90
90 and 180
90 and 270
180 and 360
The distance of the waveform travel in one cycle is referred to
amplitude
wavelength
time
frequency
The effective voltage value is
25%
50%
71%
90%
The average current/ voltage value will not be zero only if it is
step up
rectified
amplified
intensified
The resistor in an AC will cause
no phase difference
V lead I
I lead V
I lags V
Voltage leads the current in an AC generators can be referred to
resistance
capacitance
inductance
The combination of resistance, capacitance and induntance is referred to
impedance
reactance
angular frequency
amplitude
High potential voltage produced by three-phase generators commonly used in
filament
X-ray tube
transformer
anode
