cold cathode lamp वाक्य
"cold cathode lamp" हिंदी में cold cathode lamp in a sentenceउदाहरण वाक्य
- Cold cathode lamps are generally less efficient than thermionic emission lamps because the cathode fall voltage is much higher.
- Because cold cathode lamps have no thermionic emission coating to wear out they can have much longer lives than hot cathode tubes.