MagnetismHard
Question
A particle of mass m and charge q is thrown origin at t = 0 with velocity 2î + 3ĵ + 4
units in a region with uniform magnetic field 2î units. After time t = 
, an electric file 
is switched on, such that particle moves on a straight line with constant speed.may 
be
units in a region with uniform magnetic field 2î units. After time t = , an electric file is switched on, such that particle moves on a straight line with constant speed.may be Options
A.- 8ĵ + 6units
units B.- 6ĵ - 9units
units C.- 12ĵ + 9units
units D.8ĵ - 6units
units Solution
At t = 
= 2î - 2ĵ - 4
; For net to be zero force to be zero
= 0 ⇒
= - 
= - 8ĵ + 6
= 2î - 2ĵ - 4; For net to be zero force to be zero = 0 ⇒ = - = - 8ĵ + 6 Create a free account to view solution
View Solution FreeMore Magnetism Questions
A charged partical moves through a magnetic field in a direction perpndicular to it. Then the...A charged particle is projected in a plane perpendicular to a uniform magnetic field. The area bounded by the path descr...When a proton is released from rest in a room, it starts with an initial acceleration a0 towards west. When it is projec...A uniform magnetic field of 1.5 T exists in a cylindrical region of radius 10.0 cm, it′s direction being parallel ...A current carrying is placed vertically and a particle of mass m with charge Q is released from rest. The particle moves...