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K1-12. Cathode Ray Tube - Deflection By Magnet
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HomeK. Electromagnetic PrinciplesK1. Forces On Moving ChargesK1-12. Cathode Ray Tube - Deflection By Magnet
K1-12. Cathode Ray Tube - Deflection By Magnet
Purpose
To demonstrate visually the force on an electron beam by a magnetic field.
Equipment
Cathode ray tube with power supply and weak bar magnet.
Images
Description
A cathode ray tube produces a beam of electrons which can be seen as it hits a phosphorescent surface inside the tube. Holding a magnet close to the CRT parallel to the table so that it produces a horizontal magnetic field inside the tube causes the electron beam to deflect up or down. The vector nature of the force can be studied by reversing the magnet.
References
Operating Instructions, Cathode Ray Tube, Model CR-100-A, Electro-Technic Products.
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See pagesk1. forces on moving charges
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See pagesk2. electromagnetic induction
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See pagesk3. transformers
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See pagesk4. motors & generators
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See pagesk5. electrical properties of matter
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See pagesk6. electric circuits & instruments
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See pagesk7. rlc circuits
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See pagesk8. electromagnetic waves
-
See pagesk1. forces on moving charges
-
See pagesk2. electromagnetic induction
-
See pagesk3. transformers
-
See pagesk4. motors & generators
-
See pagesk5. electrical properties of matter
-
See pagesk6. electric circuits & instruments
-
See pagesk7. rlc circuits
-
See pagesk8. electromagnetic waves
Physics Lab Demos