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In a chamber, a uniform magnetic field o...

In a chamber, a uniform magnetic field of `6.5 G (1 G = 10^-4T)` is maintained. An elecIron is shot into the field with a speed of `4.8 xx10^6 ms^-1`normalto the field. Explain why the path of the electron is a circle. Determine the radius of the circular . orbit.(e = `1.6xx10^-19 C, m_e=9.1xx10^-31kg)`.

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