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A magnetic field is directed into the plane of the paper. If a positive charge m

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Question: A magnetic field is directed into the plane of the paper. If a positive charge moves to the right, what is the direction of the magnetic force acting on it? (2021)

Options:

  1. Upwards
  2. Downwards
  3. To the left
  4. To the right

Correct Answer: Upwards

Exam Year: 2021

Solution: 

Using the right-hand rule, if the magnetic field is into the paper and the charge moves to the right, the force will be upwards.

A magnetic field is directed into the plane of the paper. If a positive charge m

Practice Questions

Q1
A magnetic field is directed into the plane of the paper. If a positive charge moves to the right, what is the direction of the magnetic force acting on it? (2021)
  1. Upwards
  2. Downwards
  3. To the left
  4. To the right

Questions & Step-by-Step Solutions

A magnetic field is directed into the plane of the paper. If a positive charge moves to the right, what is the direction of the magnetic force acting on it? (2021)
  • Step 1: Identify the direction of the magnetic field. In this case, it is directed into the plane of the paper.
  • Step 2: Identify the direction of the positive charge's movement. Here, the charge is moving to the right.
  • Step 3: Use the right-hand rule to determine the direction of the magnetic force. Point your thumb in the direction of the charge's movement (to the right).
  • Step 4: Point your fingers in the direction of the magnetic field (into the paper).
  • Step 5: Your palm will face upwards, indicating the direction of the magnetic force acting on the positive charge.
  • Magnetic Force on a Charged Particle – The magnetic force acting on a charged particle moving in a magnetic field is determined by the right-hand rule, which relates the direction of the magnetic field, the velocity of the charge, and the resulting force.
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