A-LevelPhysicsElectric fieldsOct/Nov 2010Paper 1 Q281 Mark
The diagram shows a vertical uniform electric field in a vacuum. [Figure showing vertical electric field lines pointing downwards, and a horizontal beam of electrons flowing from left to right.] An electron gun injects a beam of electrons horizontally into the field. Which changes, if any, have occurred to the path and speed of the electrons by the time the beam leaves the field?
Apath of electrons: deflected downwards, speed of electrons: increased
Bpath of electrons: deflected downwards, speed of electrons: unchanged
Cpath of electrons: deflected upwards, speed of electrons: increased
Dpath of electrons: deflected upwards, speed of electrons: unchanged
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