Controlled Half-Wave Rectifiers Quiz
Quiz
•
Other
•
1st Grade
•
Practice Problem
•
Hard
Norain Zakaria
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens during the negative half cycle of a controlled half-wave rectifier?
SCR is always on
SCR conducts
SCR is forward-biased
SCR is reverse-biased
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the firing angle in a controlled half-wave rectifier?
The angle of the output current
The angle at which SCR starts conducting
The angle of the input voltage
The angle at which SCR stops conducting
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the average output voltage formula for a resistive load?
V_avg = V_m / π
V_avg =( V_m / π) * (1 + cos(α))
V_avg = V_m * (cos(α) - cos(β))
V_avg = V_m / 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of an inductive load on a controlled half-wave rectifier?
It decreases the input voltage
It causes the SCR to turn off
It increases the output voltage
It stores energy in the inductor
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the average output voltage for an inductive load?
V_avg = V_m / 2
V_avg = (V_m / π)* (cos(α) - cos(β))
V_avg = (V_m / π) * (1 + cos(α))
V_avg = V_m / π
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the gate current is applied to the SCR?
SCR turns off
SCR starts conducting
SCR remains off
SCR stops conducting
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the average output voltage of a single-phase half-wave controlled rectifier with a resistive load (R) and an input voltage of 120V (rms)?
A. 54V
B. 76V
C. 84.85V
D. 120V
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