Magnetic field due to currentMedium
Question
There are constant electron field E0ĵ & magnetic field B
present between plates P and P′. A particle of mass m is projected from plate p′ along y axis with velocity v1. After moving on the curved path, it passes through point A just grazing the plate P with velocity v2. The magnitude of impulse (i.e. 
) provided by magnetic force during the motion of particle from origin to point A is : -
present between plates P and P′. A particle of mass m is projected from plate p′ along y axis with velocity v1. After moving on the curved path, it passes through point A just grazing the plate P with velocity v2. The magnitude of impulse (i.e. ) provided by magnetic force during the motion of particle from origin to point A is : -Options
A.m|v2 - v1|
B.
C.mv1
D.mv2
Solution
Electric force is only responsible for the change in momentum along y - axis. Therefore impulse provide by magnetic force is JB = mv2.
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