If an electron entering at a magnetic field of 2 10-2 T has a veloci – McqOptions

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1.	If an electron entering at a magnetic field of 2 10^-2 T has a velocity of 3 10⁷ ms^-1 and describes a circle of radius 8 10^-3 m, then find the value of ( frac {e}{m} ) of the electron.
A.	1.567 10<sup>11</sup> C/Kg
B.	190 10<sup>11</sup> C/Kg
C.	18 10<sup>11</sup> C/Kg
D.	1.875 10<sup>11</sup> C/Kg
Answer» E.

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