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Assertion (A): The terminal voltage of a voltage source inverter remains substantially constant with variations in load.
Reason (R): Any short-circuit across the terminals of a voltage source inverter causes current to rise very fast.
Reason (R): Any short-circuit across the terminals of a voltage source inverter causes current to rise very fast.
- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is not the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Assertion (A): The terminal voltage of a voltage source inverter remai...
A voltage source inverter is one in which the d.c. source has small or negligible impedance. Due to low internal impedance, the terminal voltage of a VSI remains substantially constant with variations in load. Reason is also a correct -statement because due to low time constant of internal impedance any short-circuit across the terminals of a VSI causes current to rise very fast. Hence, both assertion and reason are true but reason is not the correct explanation of assertion.
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Most Upvoted Answer
Assertion (A): The terminal voltage of a voltage source inverter remai...
Explanation:
The correct answer is option 'B': Both A and R are true but R is not the correct explanation of A. Let's understand why.
Assertion (A): The terminal voltage of a voltage source inverter remains substantially constant with variations in load.
The terminal voltage of a voltage source inverter (VSI) does not remain substantially constant with variations in load. The voltage output of a VSI depends on the input voltage and the switching action of the inverter. The load variations can cause changes in the output current, which in turn affects the output voltage. Therefore, the terminal voltage of a VSI is not constant with load variations.
Reason (R): Any short-circuit across the terminals of a voltage source inverter causes current to rise very fast.
The reason stated is true. In case of a short-circuit across the terminals of a voltage source inverter, the current can rise very fast due to the low impedance path provided by the short-circuit. The short-circuit causes a direct connection between the positive and negative terminals of the inverter, resulting in a high flow of current. This sudden increase in current can lead to various issues such as overheating, damage to the inverter components, and even failure of the inverter if not protected properly.
Explanation:
The reason given in option 'R' is a valid explanation for the assertion in option 'A'. However, it is important to note that while a short-circuit can cause a rapid increase in current, it does not explain the constancy of the terminal voltage with load variations. Therefore, option 'B' is the correct answer.
In summary, the terminal voltage of a voltage source inverter does not remain constant with load variations, and a short-circuit across the terminals of a voltage source inverter can cause a rapid rise in current.
The correct answer is option 'B': Both A and R are true but R is not the correct explanation of A. Let's understand why.
Assertion (A): The terminal voltage of a voltage source inverter remains substantially constant with variations in load.
The terminal voltage of a voltage source inverter (VSI) does not remain substantially constant with variations in load. The voltage output of a VSI depends on the input voltage and the switching action of the inverter. The load variations can cause changes in the output current, which in turn affects the output voltage. Therefore, the terminal voltage of a VSI is not constant with load variations.
Reason (R): Any short-circuit across the terminals of a voltage source inverter causes current to rise very fast.
The reason stated is true. In case of a short-circuit across the terminals of a voltage source inverter, the current can rise very fast due to the low impedance path provided by the short-circuit. The short-circuit causes a direct connection between the positive and negative terminals of the inverter, resulting in a high flow of current. This sudden increase in current can lead to various issues such as overheating, damage to the inverter components, and even failure of the inverter if not protected properly.
Explanation:
The reason given in option 'R' is a valid explanation for the assertion in option 'A'. However, it is important to note that while a short-circuit can cause a rapid increase in current, it does not explain the constancy of the terminal voltage with load variations. Therefore, option 'B' is the correct answer.
In summary, the terminal voltage of a voltage source inverter does not remain constant with load variations, and a short-circuit across the terminals of a voltage source inverter can cause a rapid rise in current.
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Assertion (A): The terminal voltage of a voltage source inverter remains substantially constant with variations in load.Reason (R): Any short-circuit across the terminals of a voltage source inverter causes current to rise very fast.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer?
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ample number of questions to practice Assertion (A): The terminal voltage of a voltage source inverter remains substantially constant with variations in load.Reason (R): Any short-circuit across the terminals of a voltage source inverter causes current to rise very fast.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
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