The diagram below shows the tracks left by three particles that have passed thro

Question

The diagram below shows the tracks left by three particles that have passed through a region where the magnetic field is uniform and is directed into your computer screen. Each particle traveled in the plane of the screen. (a) Assume the mass of all the particles was the same, their charges had the same magnitude, and the paths had different curvatures because the particles had different speeds. Rank the particles based on the magnitude of the force they experienced while inside the field, from largest to smallest. (Use only"" or"-symbols. Do not include any parentheses around the letters or symbols.) (b) Now assume the particles had identical masses and speeds, and they differed in their charges. Rank the particles based on their charges, from most positive to most negative. (Use only->"or "-" symbols. Do not include any parentheses around the letters or symbols.)

Explanation / Answer

Force acting on particles is magnetic =q (V×B)where Velocity and B are vector

radius of circle that particles will go is in the given order B>A>C

Mv^2/r=Bqv

r=Mv/Bq

So greater the speed greater wil be r and F

Order of F :B>A>C

r=mv/Bq

Direction of force can be cal . Using Fleming's left hand rule

r is inversely proportional to q

C Wil be negative A and B wil be positive

Order of charge A>B>C

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