The cathode ray tube produces an electron beam, which can be seen as it hits a phosphorescent surface inside the tube. Holding a bar magnet parallel to the table it causes a horizontal magnetic field inside the tube that causes the electron beam to deflect. The vector nature of this force can be observed by reversing the magnet.
(5H30.10) Cathode-Ray Tube Deflected by a Magnet
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The cathode ray tube produces an electron beam, which can be seen as it hits a phosphorescent surface inside the tube. Holding a bar magnet parallel to the table it causes a horizontal magnetic field inside the tube that causes the electron beam to deflect. The vector nature of this force can be observed by reversing the magnet.
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