What is Cathode: Definition and 125 Discussions

A cathode is the electrode from which a conventional current leaves a polarized electrical device. This definition can be recalled by using the mnemonic CCD for Cathode Current Departs. A conventional current describes the direction in which positive charges move. Electrons have a negative electrical charge, so the movement of electrons is opposite to that of the conventional current flow. Consequently, the mnemonic cathode current departs also means that electrons flow into the device's cathode from the external circuit.
The electrode through which conventional current flows the other way, into the device, is termed an anode.

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  1. A

    Build a CRT: DIY Instructions & Guide

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  2. D

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    Hello everyone, I have some questions about these rays. And i would be grateful if you could help me, 1- The nature of cathode rays doesn't depend on neither the gas in the tube nor the material of the electrodes. Why? 2-The nature of canal rays depends on the gas in the tube. Why? 3-...
  3. A

    Why canal rays need a perforated cathode?

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  4. C

    Electroplating, anode and cathode help.

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  5. skate_nerd

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  6. S

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  7. Q

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  8. R

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  9. J

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  10. S

    Why do gases not conduct electricity at ordinary pressure?

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  11. M

    Cathode Rays & Velocity: Uniform or Accelerated?

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  12. A

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  13. V

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  14. K

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  15. J

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  16. D

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  17. M

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  18. I

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  19. U

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  20. P

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  21. P

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  22. L

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  23. M

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  24. A

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  25. J

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  26. D

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  27. D

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  28. D

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  29. P

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  30. E

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  31. T

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  32. P

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  33. M

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  34. M

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  35. D

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  36. C

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  37. C

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  38. H

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  39. P

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  40. T

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  41. M

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  42. N

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  43. U

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  44. L

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  45. S

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  46. M

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  47. L

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  48. N

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  49. N

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  50. P

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