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(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current flowing is known as thermion current.
(ii)Thermions have dissimilar velocities.
(iii)This was discovered by Edison
What do you mean by an optical fiber? State its principle. Can we minimize chromatic and spherical aberrations simultaneously? If so, how?
These capacitors are used as tuning capacitors in radio receivers. The two requirements of these capacitors are: (1) Frequency stability (2) Preventing micro
What is force
#queston.assigenent of oxalic acid
Charge is the characteristic associated with matter due to which it produces and experiences electrical and magnetic effects.
Electricity: The flow of electron is known as electricity.
Which are the concepts of displacement and distance?
A device which changes light energy into electrical energy is known as photoelectric cell. It is also known as photocell or electric eye.
Ask question #whether s component or p component present in the reflected light of Biot''s polariscope# Minimum 100 words accepted#
MANUFACTURING: R esistive element is prepared in carbon composition, but the filler used is ceramic powder. The sheet resistance is controlled by changing the quantity of carb
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