Advertisements
Advertisements
प्रश्न
What supplies electrons in a vacuum tube?
पर्याय
A heated cathode
Air molecules in the inter-electrode space
A Liquid Crystal Display monitor
A metal point contact
MCQ
Advertisements
उत्तर
Electrons in a vacuum tube are supplied by a heated cathode. They then move through the vacuum between electrodes.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
