Assertion : Magnetic field is useful in producing parallel beam of charged particle. Reason : Magnetic field…

Assertion : Magnetic field is useful in producing parallel beam of charged particle. Reason : Magnetic field inhibits the motion of charged particle moving across it.
  1. both assertion and reason are true and reason is the correct explanation of assertion.
  2. both assertion and reason are true but reason is not the correct explanation of assertion.
  3. assertion is true but reason is false.
  4. both assertion and reason are false.

Solution

- The assertion states that "Magnetic field is useful in producing parallel beam of charged particles."
- This is true because a magnetic field can influence the motion of charged particles, causing them to move in a controlled manner. When charged particles move through a magnetic field, they experience a force that can be used to align them into a parallel beam.
- The reason states that "Magnetic field inhibits the motion of charged particles moving across it."
- This is also true. When a charged particle moves through a magnetic field, it experiences a magnetic force (given by the Lorentz force law: \(\mathrm{F}=\mathrm{q}(\mathrm{v} \times \mathrm{B})\)), which acts perpendicular to its velocity. This force does not do work on the particle but changes its direction, effectively "inhibiting" its straight-line motion.
- Both the assertion and the reason are true, and the reason is the correct explanation for the assertion

Asked in: NEET 2017

Practice more Magnetic Materials questions on Aicharya