Beam Force Experiment
Physics: Cambridge International GCSE Supplement, topic 4.14.4
Experiment - Forces on a Beam of Charged Particles
A force acts on charged particles moving through a magnetic field.
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Deflection tube
- In a deflection tube, a beam of high energy electrons passes through a vacuum and can be seen on a fluorescent screen.
- When a bar magnet is held at a right angle to the electron’s path, the electron feels a force and its path changes direction.
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Electron direction
- Fleming’s left hand rule tells us which direction the electrons will move.
Test yourself on Beam Force Experiment
In this experiment, we can predict in which direction the electrons will move using...