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Q. State Coulombs law in electrostatics?
Coulomb's law declares that the force of attraction or repulsion between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. The direction of forces is beside the line joining the two point charges.
A glass sphere of radius 15 cm has a small air bubble at a distance of 6 cm from its centre. When viewed normally along its diameter from the nearest side, the bubble seems to be 7
Give the conditions needed for production and observation of interference pattern?
Figure shows the magnetic circuit of a relay. When each of the air gaps are 1.5mm wide find the mmf required to produce a flux density of 0.75 T in the air gaps. Use the B-
5kVA single-phase transformer has a turns ratio of 10:1 and is fed from a 2.5kV supply. Neglecting losses, Determine (a) the full load secondary current, (b) the minimum
KINEMATIC CHAIN : Refers to an assembly of rigid bodies connected by joints that is the mathematical model for a mechanical system. As in the familiar use of the word chain, the ri
A 6kg crate originally at rest is pulled to the right along a horizontal plane with a constant horizontal force of 12N. a)find the velocity of the crate once it has moved 3m on th
The higher power level band is called as the conduction band. (i) It is also called as empty band of minimum energy. (ii) This band is partially filled by the electrons. (
Will there be any change in hz of sound if two vibrating body has the similar hz Ans) Yes it depends on the path difference among them... Like in destructive inteference u
why electron move in orbit
Due to drift velocity of electrons and due to collision of electrons
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