AIPMT PRELIMS2011Physics-Electromagnetic Fields
AIPMT PRELIMS 2011 Physics Motion of Charged Particles MCQ Question
Type: MCQ-conceptual-Medium-Class 12
An electric field and a magnetic field are acting along the same direction in certain region. If an electron is projected in the region such that its velocity is pointed along direction of fields, then the electron
A
Will turn towards left of direction of motion
B
Will turn towards right of direction of motion
C
Speed will decrease
D
Speed will increase
Correct Answer
Option C
Detailed Explanation
B field will not apply any force. E field will apply a force opposite to velocity of the electron hence, speed will decrease.
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