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JIPMER 2017
Exam
JIPMER
Year
2017
Subject
Physics
Chapter
Magnetic Effects of Current

JIPMER 2017 · Physics · Magnetic Effects of Current

A uniform electric field and a uniform magnetic field acting along...

A uniform electric field and a uniform magnetic field acting along the same direction in a certain region. If an electron is projected along the direction of the fields with a certain velocity, then

Options

  1. Ait will turn towards left of direction of motion.
  2. Bit will turn towards right of direction of motion.
  3. Cits velocity will increase.
  4. Dits velocity will decrease.

Correct answer

D. its velocity will decrease.

Step-by-step solution

The magnetic field will not apply any force on the electron. On the other hand, the electric field will apply a force on the electron in opposite direction of the motion. As a result, the velocity of the electron will decrease.
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