Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Assertion (A): A coil, when connected across ...
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Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.
Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).
Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).
- 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 'A'. Can you explain this answer?
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Assertion (A): A coil, when connected across 230 V dc supply, will dra...
Explanation:
When a coil is connected across a 230 V dc supply, it draws a certain amount of current based on the resistance and inductance of the coil. However, when the same coil is connected across a 230 V ac supply, the current drawn by the coil is affected by the inductance of the coil. This is because the inductance of the coil opposes the flow of alternating current.
A: True
The assertion is true since a coil connected across a 230 V dc supply will draw less current compared to when it is connected across a 230 V ac supply. This is because the inductance of the coil opposes the flow of alternating current. The coil's inductance is directly proportional to the frequency of the alternating current. Therefore, when the frequency of the ac supply increases, the opposition to the current flow in the coil also increases. This leads to a higher current draw by the coil when connected across an ac supply.
R: Correct explanation
The reason given for the assertion is also true. The inductance of the coil is a property that resists a change in the current flowing through it. When an ac supply is connected to the coil, the current flowing through the coil changes direction periodically. This change in direction causes the inductance of the coil to oppose the current flow. Therefore, the higher the frequency of the ac supply, the higher the opposition to the flow of current in the coil, leading to a higher current draw.
Therefore, both assertion and reason are true, and the reason is the correct explanation of the assertion.
When a coil is connected across a 230 V dc supply, it draws a certain amount of current based on the resistance and inductance of the coil. However, when the same coil is connected across a 230 V ac supply, the current drawn by the coil is affected by the inductance of the coil. This is because the inductance of the coil opposes the flow of alternating current.
A: True
The assertion is true since a coil connected across a 230 V dc supply will draw less current compared to when it is connected across a 230 V ac supply. This is because the inductance of the coil opposes the flow of alternating current. The coil's inductance is directly proportional to the frequency of the alternating current. Therefore, when the frequency of the ac supply increases, the opposition to the current flow in the coil also increases. This leads to a higher current draw by the coil when connected across an ac supply.
R: Correct explanation
The reason given for the assertion is also true. The inductance of the coil is a property that resists a change in the current flowing through it. When an ac supply is connected to the coil, the current flowing through the coil changes direction periodically. This change in direction causes the inductance of the coil to oppose the current flow. Therefore, the higher the frequency of the ac supply, the higher the opposition to the flow of current in the coil, leading to a higher current draw.
Therefore, both assertion and reason are true, and the reason is the correct explanation of the assertion.
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Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. Can you explain this answer?
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Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. 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 Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. 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 Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. Can you explain this answer?.
Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. 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 Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. 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 Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. Can you explain this answer?.
Solutions for Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
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ample number of questions to practice Assertion (A): A coil, when connected across 230 V dc supply, will draw more current in comparison to that when connected across 230 V ac supply.Reason (R): The inductance of the coil opposes the flow of alternating current (not that of direct current).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 'A'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
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