Question

What is the cathode ray tube experiment?

Answer 1

Cathode-ray tube experiment

• A cathode-ray tube (CRT) is a vacuum tube that generates a trace on a fluorescent screen by deflecting an electron beam with applied electric or magnetic fields.
• J. J. Thomson's Cathode Ray Tube (CRT) experiment led to the discovery of the electron.

Cathode-ray tube experiment procedure

• Maintain the low pressure inside the tube by providing a high voltage source and evacuating the air.
• High voltage is applied to the two metal pieces to ionize the air and make it a conductor of electricity.
• As soon as the circuit is complete, electricity begins to flow.
• The positive and negative poles were retained on either side of the discharge ray.
• The negative pole rejected the beam and deflected towards the positive pole when the dipoles were applied.
• Placing the phosphorescent material at the end of the discharge beam further proved this.
• When a discharge ray hits it, it glows.
• It was discovered that the deflections were on the positive side by carefully analyzing the sites where fluorescence was noticed.
• As a result, the discharge tube's constituents became negatively charged.