Questions
When a proton is released from rest in a room, it starts with an initial acceleration towards west. When it is projected towards north with a speed
it moves with an initial acceleration toward west. The electric and magnetic fields in the room are
detailed solution
Correct option is D
when proton is stationary force is only due to electric field i.e, E⇀ =ma0e along westforce due to magnetic field must be 2ma0along west its velocity is along north (j) force is along west (-i)F→=q(V ⇀ xB⇀) (-i=j x-k) hence magnetic field is vertically downwards direction and having a magnitude 2ma0eSimilar Questions
A charged particle of mass m, carrying a charge Q is projected from the origin with a velocity . A uniform magnetic field exists in that region. Then maximum distance of the particle from x-axis is
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