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In an experiment ,electrons are accelera...

In an experiment ,electrons are accelerated from rest, by applying a voltage of 500 V.Calculate the radius of the path if a magnetic field 100 m T is then applied .Charge of the electron `=1.6 xx 10^-19 C `
Mass of the electron `=9.1 xx 10 ^(-31)` Kgl

A

`7.5 xx 10^3 m`

B

`7.5 xx 10 ^2 m`

C

7.5 m

D

`7.5 xx 10 ^-4 m`

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