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**some hints on the question... please?!! thanks!**

**1. Assume that the region to the right of a certain vertical plane contains a**

vertical magnetic field of magnitude 1.00 mT, and the field is zero in the region

to the left of the plane. An electron, originally traveling perpendicular to the

boundary plane, passes into the region of the field. (a) Determine the time

interval required for the electron to leave the “field-filled” region, noting that

its path is a semicircle. .

vertical magnetic field of magnitude 1.00 mT, and the field is zero in the region

to the left of the plane. An electron, originally traveling perpendicular to the

boundary plane, passes into the region of the field. (a) Determine the time

interval required for the electron to leave the “field-filled” region, noting that

its path is a semicircle. .

**2. radius = mv/ qB**

In order to find the time takes for the electron to leave the region, the displacement of the electron needs to be found

since the path is a semicircle, then displacement is 2r

so one equation will be : 2r= vt+0.5at^2

since radius r= mv/qB ... another equation..

I feel that I need some other relations between v,a, and r, inorder to solve the question... but where are the rest???

am I on the right track??

Thanks for all the help!!!

In order to find the time takes for the electron to leave the region, the displacement of the electron needs to be found

since the path is a semicircle, then displacement is 2r

so one equation will be : 2r= vt+0.5at^2

since radius r= mv/qB ... another equation..

I feel that I need some other relations between v,a, and r, inorder to solve the question... but where are the rest???

am I on the right track??

Thanks for all the help!!!