Magnetic field due to currentHard
Question
H+, He+ and O2+ all having the same kinetic energy pass through a region in which there is a uniform magnetic field perpendicular to their velocity. The masses of H+, He+ and O2+ are 1 amu, 4 amu and 16 amu respectively. Then :
Options
A.H+ will be deflected most
B.O2+ will be deflected most
C.He+ and O2+ will be deflected equally
D.All will be deflected equally
Solution
RH+ = 
= R
RHe+ =
= 2R
RO+2 = 2
= 2R
H+ is deflected most
= RRHe+ =
= 2RRO+2 = 2
= 2RH+ is deflected most
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