Question bank/JEE Main/Physics
JEE MainPhysics
A charge q is projected from origin with a velocity along
positive x-axis in a region having uniform magnetic field directed
towards negative y-axis. If T is the time period of circular motion then
the velocity vector of charge q at some instant t where
[IMAGE] may be
Show answer and solution
[IMAGE] The charge executes circular motion in x-z plane with its center lying
on the negative z-axis. At time t where[IMAGE] the charge
has completed [IMAGE] th of the circle and so its velocity
vector is pointing towards first quadrant in x-z plane.
⇒ V_x is positive and V_z is positive and V_y is zero.
on the negative z-axis. At time t where[IMAGE] the charge
has completed [IMAGE] th of the circle and so its velocity
vector is pointing towards first quadrant in x-z plane.
⇒ V_x is positive and V_z is positive and V_y is zero.
Source: Grass-G / P-02 Physics Paper-02_Update.docx
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