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Question: Answered & Verified by Expert
A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron
PhysicsElectrostaticsNEETNEET 2011 (Screening)
Options:
  • A speed will decrease
  • B speed will increase
  • C will turn towards left of direction of motion
  • D will turn towards right of direction a motion
Solution:
1683 Upvotes Verified Answer
The correct answer is: speed will decrease
Field $B$ not applied only force. Field $E$ will apply a force opposite to velocity of the electron hence, speed will decreases.

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