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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): An alternating current does not show any magnetic effect.
Reason (R): Alternating current changes direction with time.
- 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 and R is true
Correct answer is option 'D'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A)...
Current or moving charged particle creates magnetic field irrespective of direct current or alternating current. So assertion is false. Alternating current changes direction with time. So, the reason is true, but cannot explain the assertion.
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Directions : In the following questions, A statement of Assertion (A)...
Assertion (A): An alternating current does not show any magnetic effect.
Reason (R): Alternating current changes direction with time.
The correct answer is option D: A is false and R is true.
Explanation:
An alternating current (AC) is an electric current that constantly changes direction, typically in a sinusoidal waveform. It is produced by sources such as generators and is used to power most household appliances and electrical devices.
Statement A: An alternating current does not show any magnetic effect.
This statement is false. Alternating current does exhibit a magnetic effect. When an alternating current flows through a conductor, it creates a changing magnetic field around the conductor. This phenomenon is described by Ampere's law, which states that a magnetic field is produced around a current-carrying conductor. The strength and direction of the magnetic field vary with the magnitude and direction of the current. This magnetic field can be observed using a compass needle or by using devices such as magnetometers.
Statement R: Alternating current changes direction with time.
This statement is true. Alternating current alternates its direction periodically. It reverses its direction at regular intervals, typically 50 or 60 times per second, depending on the frequency of the AC supply. This reversal of direction is what distinguishes AC from direct current (DC), which flows in only one direction. The alternating nature of the current allows for efficient transmission of electrical energy over long distances and enables the operation of electric motors and other AC-based devices.
Conclusion:
In conclusion, the statement A is false because alternating current does show a magnetic effect, and the statement R is true because alternating current changes direction with time. Therefore, the correct answer is option D: A is false and R is true.
Reason (R): Alternating current changes direction with time.
The correct answer is option D: A is false and R is true.
Explanation:
An alternating current (AC) is an electric current that constantly changes direction, typically in a sinusoidal waveform. It is produced by sources such as generators and is used to power most household appliances and electrical devices.
Statement A: An alternating current does not show any magnetic effect.
This statement is false. Alternating current does exhibit a magnetic effect. When an alternating current flows through a conductor, it creates a changing magnetic field around the conductor. This phenomenon is described by Ampere's law, which states that a magnetic field is produced around a current-carrying conductor. The strength and direction of the magnetic field vary with the magnitude and direction of the current. This magnetic field can be observed using a compass needle or by using devices such as magnetometers.
Statement R: Alternating current changes direction with time.
This statement is true. Alternating current alternates its direction periodically. It reverses its direction at regular intervals, typically 50 or 60 times per second, depending on the frequency of the AC supply. This reversal of direction is what distinguishes AC from direct current (DC), which flows in only one direction. The alternating nature of the current allows for efficient transmission of electrical energy over long distances and enables the operation of electric motors and other AC-based devices.
Conclusion:
In conclusion, the statement A is false because alternating current does show a magnetic effect, and the statement R is true because alternating current changes direction with time. Therefore, the correct answer is option D: A is false and R is true.
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer?.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Here you can find the meaning of Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): An alternating current does not show any magnetic effect.Reason (R): Alternating current changes direction with time.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 and R is trueCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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