Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2007
Exam
NEET
Year
2007
Subject
Physics
Chapter
Magnetic Effects of Current

NEET 2007 · Physics · Magnetic Effects of Current

A beam of clectron passes undeflected through mutually...

A beam of clectron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move:

Options

  1. Ain a circular orbit
  2. Balong a parabolic path
  3. Calong a straight line
  4. Din an elliptical orbit.

Correct answer

A. in a circular orbit

Step-by-step solution

Since, direction of motion of electron must be perpendicular to the both electric and magnetic fields.When electric field is switch off then the magnetic field is perpendicular to the direction of motion of charge particle and therefore, the electrons starts exhibiting circular motion.
Practice Magnetic Effects of Current on Quantrex Academy →

More from Magnetic Effects of Current

The magnitude of the magnetic induction (B) at a point on the axis at a large distance… MHT CET Medical 2026For a circular coil of radius a , at what distance x along its axis the magnetic field is… MHT CET Medical 2026A circular coil having 'n' turns, each of radius 'r' carries a current 'I'. The magnetic… MHT CET Medical 2026The ratio of cyclotron frequency f to the radius of the path of a charged particle R is… MHT CET Medical 2026In a cyclotron, for the same values of B and R, what is the ratio of the maximum kinetic… MHT CET Medical 2026The magnitude of the magnetic field at point O (centre of the arc) with radius R, in the… MHT CET Medical 2026Two wires of same material A and B, having lengths l and (2l)/(3) carry the currents I… MHT CET Medical 2026An electron is projected with uniform velocity along the axis of a current carrying long… MHT CET Medical 2026 Full Magnetic Effects of Current list All NEET PYQs