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A Positive point charge is moving in clockwise direction in a circle with constant speed. Consider the magnetic field produced by the charge at a point P (not centre of the circle) on the axis of the circle. Which of the following is incorrect.
  • a)
    it is constant in direction and magnitude both 
  • b)
    it is not constant in magnitude and direction both. 
  • c)
    it is constant in direction only 
  • d)
    it is constant in magnitude only
Correct answer is option 'A,B,C'. Can you explain this answer?
Verified Answer
A Positive point charge is moving in clockwise direction in a circle w...
The point charge moves in circle as shown in figure. The magnetic field vectors at a point  P  on axis of circle are   at the instants the point charge is at A and C respectively as shown in the figure.
Hence as the particles rotates in circle, only magnitude of magnetic field remains constant at the point on axis P but its direction changes.
The correct answers are: it is constant in direction only, it is constant in direction and magnitude both, it is not constant in magnitude and direction both.
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Most Upvoted Answer
A Positive point charge is moving in clockwise direction in a circle w...
The point charge moves in circle as shown in figure. The magnetic field vectors at a point  P  on axis of circle are   at the instants the point charge is at A and C respectively as shown in the figure.
Hence as the particles rotates in circle, only magnitude of magnetic field remains constant at the point on axis P but its direction changes.
The correct answers are: it is constant in direction only, it is constant in direction and magnitude both, it is not constant in magnitude and direction both.
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Community Answer
A Positive point charge is moving in clockwise direction in a circle w...
Introduction:
When a positive point charge moves in a circular path with constant speed, it creates a magnetic field around it. This magnetic field can be analyzed at a point P on the axis of the circle. Let's analyze the given options to determine which one is incorrect.

Analysis:
a) It is constant in direction and magnitude both.
If the point charge is moving in a circular path with constant speed, the magnetic field it produces at point P will also be constant in direction and magnitude both. This is because the charge is moving in a uniform circular motion, and the magnetic field produced by a moving charge depends only on its velocity, not on its position. Therefore, option a) is correct.

b) It is not constant in magnitude and direction both.
This statement is incorrect. As mentioned earlier, the magnetic field produced by the moving charge is constant in direction and magnitude both. So, option b) is incorrect.

c) It is constant in direction only.
This statement is incorrect. The magnetic field produced by the moving charge is not only constant in direction but also constant in magnitude. So, option c) is incorrect.

d) It is constant in magnitude only.
This statement is incorrect. The magnetic field produced by the moving charge is constant in both direction and magnitude. So, option d) is incorrect.

Conclusion:
After analyzing the given options, we can conclude that options a), b), and c) are incorrect. The correct statement is that the magnetic field produced by the positive point charge moving in a circular path with constant speed is constant in both direction and magnitude.
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A Positive point charge is moving in clockwise direction in a circle with constant speed. Consider the magnetic field produced by the charge at a pointP(not centre of the circle) on the axis of the circle. Which of the following is incorrect.a)it is constant in direction and magnitude bothb)it is not constant in magnitude and direction both.c)it is constant in direction onlyd)it is constant in magnitude onlyCorrect answer is option 'A,B,C'. Can you explain this answer?
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A Positive point charge is moving in clockwise direction in a circle with constant speed. Consider the magnetic field produced by the charge at a pointP(not centre of the circle) on the axis of the circle. Which of the following is incorrect.a)it is constant in direction and magnitude bothb)it is not constant in magnitude and direction both.c)it is constant in direction onlyd)it is constant in magnitude onlyCorrect answer is option 'A,B,C'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A Positive point charge is moving in clockwise direction in a circle with constant speed. Consider the magnetic field produced by the charge at a pointP(not centre of the circle) on the axis of the circle. Which of the following is incorrect.a)it is constant in direction and magnitude bothb)it is not constant in magnitude and direction both.c)it is constant in direction onlyd)it is constant in magnitude onlyCorrect answer is option 'A,B,C'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A Positive point charge is moving in clockwise direction in a circle with constant speed. Consider the magnetic field produced by the charge at a pointP(not centre of the circle) on the axis of the circle. Which of the following is incorrect.a)it is constant in direction and magnitude bothb)it is not constant in magnitude and direction both.c)it is constant in direction onlyd)it is constant in magnitude onlyCorrect answer is option 'A,B,C'. Can you explain this answer?.
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