PROBLEM 3: An electron follows a circular path of radius 0.20 m in a uniform magnetic field of 0.3T. Calculate the speed of the electron. Electron charge is 1.6x10-19 C and electron mass is 9.1x10-31kg.
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A: The question can be answered as follows
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A: Given, m=3 kgm'=2mL1=0.40 m
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