Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > A single phase half wave rectifier is feeding...
Start Learning for Free
A single phase half wave rectifier is feeding a resistive load. As firing angle is increased
- a)dc output voltage and rms output voltage decrease in the same proportion
- b)dc output voltage and rms output voltage decrease
- c)dc output voltage and rms output voltage increase
- d)dc output voltage and rms output voltage increase in the same proportion
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A single phase half wave rectifier is feeding a resistive load. As fir...
Explanation:
A single phase half wave rectifier is a circuit that converts an alternating current (AC) input into a direct current (DC) output. It consists of a diode and a load resistor. The firing angle is the delay between the instant when the diode is forward biased and the instant when the diode conducts current.
Effect of increasing firing angle:
When the firing angle is increased, the conduction period of the diode decreases. This means that the diode conducts current for a shorter duration during each half-cycle of the AC input waveform.
Effect on DC output voltage:
The DC output voltage of a single phase half wave rectifier is the average value of the rectified waveform. As the firing angle is increased, the duration of conduction decreases, resulting in a smaller area under the rectified waveform. This leads to a decrease in the average value of the waveform, i.e., the DC output voltage.
Effect on RMS output voltage:
The RMS (Root Mean Square) output voltage of a single phase half wave rectifier is a measure of the effective value of the rectified waveform. The RMS value is directly proportional to the square root of the area under the rectified waveform. As the firing angle is increased and the conduction period decreases, the area under the waveform decreases. This leads to a decrease in the RMS value of the waveform, i.e., the RMS output voltage.
Conclusion:
Based on the above explanation, it can be concluded that when the firing angle is increased in a single phase half wave rectifier, both the DC output voltage and the RMS output voltage decrease. Therefore, the correct answer is option 'B'.
A single phase half wave rectifier is a circuit that converts an alternating current (AC) input into a direct current (DC) output. It consists of a diode and a load resistor. The firing angle is the delay between the instant when the diode is forward biased and the instant when the diode conducts current.
Effect of increasing firing angle:
When the firing angle is increased, the conduction period of the diode decreases. This means that the diode conducts current for a shorter duration during each half-cycle of the AC input waveform.
Effect on DC output voltage:
The DC output voltage of a single phase half wave rectifier is the average value of the rectified waveform. As the firing angle is increased, the duration of conduction decreases, resulting in a smaller area under the rectified waveform. This leads to a decrease in the average value of the waveform, i.e., the DC output voltage.
Effect on RMS output voltage:
The RMS (Root Mean Square) output voltage of a single phase half wave rectifier is a measure of the effective value of the rectified waveform. The RMS value is directly proportional to the square root of the area under the rectified waveform. As the firing angle is increased and the conduction period decreases, the area under the waveform decreases. This leads to a decrease in the RMS value of the waveform, i.e., the RMS output voltage.
Conclusion:
Based on the above explanation, it can be concluded that when the firing angle is increased in a single phase half wave rectifier, both the DC output voltage and the RMS output voltage decrease. Therefore, the correct answer is option 'B'.
Free Test
FREE
| Start Free Test |
Community Answer
A single phase half wave rectifier is feeding a resistive load. As fir...
Introduction:
A single-phase half-wave rectifier is a circuit that converts an alternating current (AC) input into a direct current (DC) output. It consists of a diode and a load resistor. The firing angle refers to the delay between the start of the AC input cycle and the triggering of the diode.
Explanation:
When the firing angle of a single-phase half-wave rectifier is increased, it affects both the DC output voltage and the RMS output voltage. Let's understand how:
1. DC Output Voltage:
The DC output voltage of a rectifier is the average value of the rectified waveform. It is given by the formula:
Vdc = (2 / π) * Vm * sin(α)
Where:
Vdc = DC output voltage
Vm = Peak value of the input AC voltage
α = Firing angle
As the firing angle is increased, the conduction period of the diode decreases. This means that the diode conducts for a shorter duration during each input cycle. Consequently, the average value of the rectified waveform decreases, leading to a decrease in the DC output voltage.
2. RMS Output Voltage:
The RMS (Root Mean Square) output voltage of a rectifier is the effective value of the rectified waveform. It is given by the formula:
Vrms = Vm / √(2π) * (1 - cos(α))
Similar to the DC output voltage, the RMS output voltage is also affected by the firing angle. As the firing angle increases, the conduction period decreases, resulting in a decrease in the effective value of the rectified waveform. Therefore, the RMS output voltage also decreases.
Conclusion:
Based on the above explanations, it can be concluded that as the firing angle of a single-phase half-wave rectifier is increased, both the DC output voltage and the RMS output voltage decrease. Therefore, the correct answer is option 'B'.
A single-phase half-wave rectifier is a circuit that converts an alternating current (AC) input into a direct current (DC) output. It consists of a diode and a load resistor. The firing angle refers to the delay between the start of the AC input cycle and the triggering of the diode.
Explanation:
When the firing angle of a single-phase half-wave rectifier is increased, it affects both the DC output voltage and the RMS output voltage. Let's understand how:
1. DC Output Voltage:
The DC output voltage of a rectifier is the average value of the rectified waveform. It is given by the formula:
Vdc = (2 / π) * Vm * sin(α)
Where:
Vdc = DC output voltage
Vm = Peak value of the input AC voltage
α = Firing angle
As the firing angle is increased, the conduction period of the diode decreases. This means that the diode conducts for a shorter duration during each input cycle. Consequently, the average value of the rectified waveform decreases, leading to a decrease in the DC output voltage.
2. RMS Output Voltage:
The RMS (Root Mean Square) output voltage of a rectifier is the effective value of the rectified waveform. It is given by the formula:
Vrms = Vm / √(2π) * (1 - cos(α))
Similar to the DC output voltage, the RMS output voltage is also affected by the firing angle. As the firing angle increases, the conduction period decreases, resulting in a decrease in the effective value of the rectified waveform. Therefore, the RMS output voltage also decreases.
Conclusion:
Based on the above explanations, it can be concluded that as the firing angle of a single-phase half-wave rectifier is increased, both the DC output voltage and the RMS output voltage decrease. Therefore, the correct answer is option 'B'.
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Similar Electrical Engineering (EE) Doubts
Top Courses for Electrical Engineering (EE)View all
A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer?
Question Description
A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer?.
A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A single phase half wave rectifier is feeding a resistive load. As firing angle is increaseda)dc output voltage and rms output voltage decrease in the same proportionb)dc output voltage and rms output voltage decreasec)dc output voltage and rms output voltage increased)dc output voltage and rms output voltage increase in the same proportionCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup