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WorksheetsM3.14 Cat B
Total questions: 11
Worksheet time: 6mins
on the graph showing a sinusoidal wave, what is being represented by the letter a?
Vp-p
Vp
Vmean
Vrms
If a sine wave has a period time of 20ms what would its frequency be?
50Hz
400Hz
100Hz
20KHz
Which of the following graphs represents an AC voltage superimposed on a DC voltage?
Which of of the following graph represents the output of the circuit shown?
2πfC1 is used to calculate...
(a)
In a series LR circuit, what is used as the reference in a phasor diagram?
Is
Vs
P
VL
Ic
If XC<XL then Voltage would lead Current in the circuit.
True or False
True
False
If the frequency of the ac supply is increased what would happen to the value of the inductive reactance (XL) within a series LR circuit
XL would increase
XL would decrease
XL would remain the same
If the frequency of the ac supply is increased what would happen to the value of the capacitive reactance (XC) within a series LR circuit
XC would increase
XC would decrease
XC would remain the same
What is the relationship between the peak voltage (Vp) and the root mean square voltage (Vrms) in a sinusoidal wave?
Vp = √2 * Vrms
Vp = 2 * Vrms
Vp = 0.5 * Vrms
Vp = Vrms
If a sine wave has a peak-to-peak voltage of 10V, what would its peak voltage be?
5V
10V
20V
2.5V
