H2 Physics · JC 2 · Hard · Deflection of charged beams
A proton moves in a circular path of radius 0.20m in a uniform magnetic field of flux density 0.40T. What is the time taken for the proton to complete one full circle?
Use Bqv=mv2/r and T=2πr/v. Take q=1.6×10−19C and m=1.67×10−27kg.
1.6×10−7s
8.3×10−8s
4.2×10−6s
6.3×10−9s
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