Advertisements
Advertisements
प्रश्न
An electron emitter must have _____________ work function and ___________ melting point.
Advertisements
उत्तर
An electron emitter must have low work function and high melting point.
APPEARS IN
संबंधित प्रश्न
How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction?
Each of the following statement describes a force acting. Which force is causing work to be done?
Is work done a scalar or a vector physical quantity?
A man carrying a suitcase in his hand is walking horizontally. What is the work done against gravity?
State the energy changes which take place when An electric bulb glows when it is connected to a source of electric current.
What should be the characteristic of a source of energy?
State whether work is done or not, by writing yes or no, in the following case:
A boy climbs up 20 stairs.
