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An electron emitted by a heated cathode ...

An electron emitted by a heated cathode and accelerated through a p.d. of 2.0 kV enters a region with uniform magnetic field of 0.15T. Determine the trajectory of the electron if the field (a) is transverse to its initial velocity (b) makes an angle of `30^(@)` with the initial velocity.

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(a) Circular trajectory of radius 1.0 mm normal to B. (b) Helical trajectory of radius 0.5 mm with velocity component `2.3 xx 10^7 ms^(-1) ` along B
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