An electron having mass 9.1xx10^(-31)kg, charge 1.6xx10^(-19)C and moving with the velocity of 10^(6)m//s enters a region where magnetic field exists. If it describes a circle of radius 0.2 m then the intensity of magnetic field must be _______ xx10^(-5)T.

An electron having mass 9.1xx10^(-31)kg, charge 1.6xx10^(-19)C and mov

1.	An electron having mass 9.1xx10^(-31)kg, charge 1.6xx10^(-19)C and moving with the velocity of 10^(6)m//s enters a region where magnetic field exists. If it describes a circle of radius 0.2 m then the intensity of magnetic field must be _______ xx10^(-5)T.
Answer» 14.4 5.65 2.84 1.13 Solution :`(MV^(2))/r=Bqv` `thereforeB=(mv)/(qr)=(9.1xx10^(-31)xx10^(6))/(1.6xx10^(-19)xx0.2)` `thereforeB=2.84xx10^(-5)T`

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An electron having mass 9.1xx10^(-31)kg, charge 1.6xx10^(-19)C and moving with the velocity of 10^(6)m//s enters a region where magnetic field exists. If it describes a circle of radius 0.2 m then the intensity of magnetic field must be _______ xx10^(-5)T.

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