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Conventional Current:
Earlier scientists had no knowledge of the concept of electron, so the developed the convention, still in use, , that the direction of current is for appositively charge body to a negatively charged body, This current is known as conventional current, where as the actual flow of current is the motion of electrons from the negative terminal to the positive terminal.
Production of electricity by heat: The Seebeck effect - the thermocouple . When two different metals are brought into contact with one another, it is found that electrons can
Air dielectric capacitors are used mainly as laboratory standards of capacitance for measurement purposes. The insulating material used in these capacitances is fused silica and th
A charge is said to be in equilibrium, if total force performing on it is zero. A operation of charges is said to be in equilibrium if every charge is independently is equilibrium.
determine the magnitude of Poynting vector end the energy per unit time delivered to a wire of length land cross section A when electric current I flow in it
With the help of a bb diagram, define the principle of an optical communication system. Give its two advantages over cable communication system
In a pure semiconductor, concentration of electrons in conduction band is equal to the concentration of holes in valence band. In the process of conduction when an electric field i
Question: What sources electromagnetic radiation (a.k.a. light a.k.a. electromagnetic waves)? select the one BEST answer. Answer: Note the significant distinction betwe
Induction: The property of magnetism may be induced in a piece of material that does not normally have that characteristic. If a piece of soft iron is placed in the magnetic
Energy that is radiated or transmitted in the form of rays or waves or particles.
Echo: The sound heard after reflection from an obstacle is known as echo.
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