IP When a charged particle enters a region of uniform magnetic field, it follows

Question

IP When a charged particle enters a region of uniform magnetic field, it follows a circular path, as indicated in the figure. Is this particle positively or negatively charged? This question will be shown after you complete previous question(s). Suppose that the magnetic field has a magnitude of 0.190 T, the particle's speed is 6.5times10^6 m/s. and the radius of its path is 53.0 cm. Find the mass of the particle, given that its charge has a magnitude of 1.60 Times 10^-19 C. Give your result in atomic mass units, u, where 1 u = 1.67 Times 10^-27 kg.

Explanation / Answer

(a) According to the RHR, a positively charged particle would experience a force to the left. Since the particle is experiencing a force to the right, it must be negatively charged .

b) m = erB/v = (1.6*10^-19*0.53*0.190)/(1.67*10^-27*6.5*10^6) = 1.484 u

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