Home
Class 12
PHYSICS
Assertion : Magnetic field interacts wit...

Assertion : Magnetic field interacts with a moving charge and not with a stationary charge.
Reason : A moving charge produces a magnetic field.

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 the correct explanation of assertion.

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Assertion**: The assertion states that a magnetic field interacts with a moving charge and not with a stationary charge. This is based on the principle that a magnetic field exerts a force on a charge that is in motion relative to the field. 2. **Analyzing the Reason**: The reason provided states that a moving charge produces a magnetic field. This is a fundamental concept in electromagnetism, where moving electric charges create a magnetic field around them. 3. **Examining the Interaction**: Consider a straight conductor carrying a current (which consists of moving charges). If a stationary charge is placed near this conductor, it will not experience any force because the magnetic field produced by the current does not affect stationary charges. 4. **Effect on Moving Charges**: If we place a moving charge (with velocity \( v \)) near the same current-carrying conductor, the moving charge will experience a magnetic force due to the magnetic field created by the current in the conductor. This force will cause the moving charge to deflect. 5. **Conclusion on Assertion and Reason**: Since the assertion is true (the magnetic field interacts only with moving charges) and the reason is also true (a moving charge produces a magnetic field), and the reason correctly explains the assertion, we conclude that both the assertion and reason are true, and the reason is the correct explanation of the assertion. **Final Answer**: Both the assertion and reason are true, and the reason is the correct explanation of the assertion. ---

**Step-by-Step Solution:** 1. **Understanding the Assertion**: The assertion states that a magnetic field interacts with a moving charge and not with a stationary charge. This is based on the principle that a magnetic field exerts a force on a charge that is in motion relative to the field. 2. **Analyzing the Reason**: The reason provided states that a moving charge produces a magnetic field. This is a fundamental concept in electromagnetism, where moving electric charges create a magnetic field around them. 3. **Examining the Interaction**: Consider a straight conductor carrying a current (which consists of moving charges). If a stationary charge is placed near this conductor, it will not experience any force because the magnetic field produced by the current does not affect stationary charges. ...
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NCERT FINGERTIPS ENGLISH|Exercise Magnetic Force|15 Videos
  • MOVING CHARGES AND MAGNETISM

    NCERT FINGERTIPS ENGLISH|Exercise Motion In Magnetic Field|6 Videos
  • MOVING CHARGES AND MAGNETISM

    NCERT FINGERTIPS ENGLISH|Exercise EXEMPLAR PROBLEMS|6 Videos
  • MAGNETISM AND MATTER

    NCERT FINGERTIPS ENGLISH|Exercise NCERT Exemplar|5 Videos
  • NUCLEI

    NCERT FINGERTIPS ENGLISH|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Moving Charges and Magnetism

Moving Charges and Magnetism

Assertion : Magnetic field do not work on moving charge Reason : Magnetic field do not provide acceleration to charge.

A: The magnetic field always accelerates a moving charge if the moving charge cuts the field lines. R: When a moving charge cuts the magnetic field lines, the magnetic force on the charge is always non zero.

Assertion : A charge, whether stationary or in motion produces a magnetic field around it. Reason : Moving charge produce only electric field in the surrounding space.

Assertion A beam of electron can pass undeflected through a region of E and B. Reason Force on moving charged particle due to magnetic field may be zero in some cases.

When does a moving charged particle not experience any force while moving through a uniform magnetic field ?

A: The magnetic field lines also represent the lines of force on a moving charged particle at every point. R: Force on a moving charge acts parallel to the magnetic field.

A: The work done by magnetic field on a moving charge is zero. R: The magnetic force acting on a moving charge has no component in the direction of velocity.

(A) : A moving charge is a source of magnetic field. (R) : A current element is a source of magnetic field .