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Assertion (A): A metallic wire carrying an electric current has associated with it a magnetic field.
Reason (R): The field lines about the wire consist of a series of concentric circles whose direction is given by the right-hand rule.
  • a)
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b)
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
  • c)
    If Assertion is true but Reason is false
  • d)
    If both Assertion and Reason are false
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Assertion (A): A metallic wire carrying an electric current has associ...
  • The Assertion is correct. When a metallic wire carries an electric current, it generates a magnetic field around it. This phenomenon is a fundamental aspect of electromagnetism.
  • The Reason is also correct. The magnetic field around the wire indeed forms concentric circles, and the direction of these circles is determined by the right-hand rule.
  • However, the Reason statement is not the correct explanation of the Assertion. While both statements are individually true, the Reason does not directly explain why a metallic wire carrying an electric current produces a magnetic field.
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Assertion (A): A metallic wire carrying an electric current has associ...
Understanding the Assertion and Reason
The statement provided includes two components: an Assertion (A) about a metallic wire carrying current and a Reason (R) explaining the nature of the magnetic field around it.
Assertion (A):
- A metallic wire carrying an electric current does indeed generate a magnetic field. This phenomenon is a fundamental principle of electromagnetism, confirmed by experimental evidence.
Reason (R):
- The magnetic field lines around the wire are indeed in the form of concentric circles. The direction of these field lines can be determined using the right-hand rule: if you point your thumb in the direction of the current, your fingers curl in the direction of the magnetic field lines.
Why Option B is Correct
- Both the Assertion and the Reason are true statements. However, the Reason does not directly explain the Assertion. The Assertion is a general fact about electric currents and magnetic fields, while the Reason describes a specific characteristic of the magnetic field produced by the current.
- The relationship is that the magnetic field exists due to the current (Assertion), and the right-hand rule helps visualize this magnetic field (Reason). Thus, while the Reason elaborates on the nature of the magnetic field, it does not explain why the magnetic field exists.
Conclusion
- Therefore, the correct answer is option B: both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. This highlights the distinction between a phenomenon and its descriptive characteristics.
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Assertion (A): A metallic wire carrying an electric current has associated with it a magnetic field.Reason (R): The field lines about the wire consist of a series of concentric circles whose direction is given by the right-hand rule.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer?
Question Description
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