Answer:
Explanation:
The static charges are generated due to excess or deficiency of electrons, because these are the smallest quanta of charge available at the molecular level which can get transferred with minimal energy requirement.
These charges are usually generated by friction between the two surfaces leading to the transfer of electron from one to another.
When a plastic pipe is rubbed with a cloth then due to friction the surface of the cloth loses electron which gets stuck at the surface of the pipe making it negatively charged.
Answer:
Explanation:
From the question we are told that
Electric field of intensity 
Rectangle parameter Width 
Length 
Angle to the normal 
Generally the equation for Electric flux at parallel to the yz plane 
is mathematically given by
Generally the equation for Electric flux at parallel to xy plane 
is mathematically given by
Generally the equation for Electric flux at angle 30 to x plane 
is mathematically given by
Physical changes are those change which just externally or physically change the state of the object . for example : water boils and evaporates... here the state is just changing from liquid to vapour while the composition is the same.
chemical changes are those which bring about a change in the composition of a substance. for example: burning of paper changes into ash .
