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An electron enters a magnetic field of 0...

An electron enters a magnetic field of 0.01 T with a speed of `10^(7)ms^(-1)` and describes a circle of radius 6 mm there. Then specific charge of the electron is given by:

A

`1.76xx10^(11)Ckg^(-1)`

B

`1.67xx10^(11)Ckg^(-1)`

C

`6.71xx10^(11)Ckg^(-1)`

D

`1.9xx10^(11)Ckg^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`(e)/(m)=(v)/(Br)=(10^(7))/(10^(-2)xx6xx10^(-13))=1*66 xx10^(11)CKg^(-)`
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