Question
In: Physics
An electron part of a plate that integrates an array of parallel plates loaded and with...
An electron part of a plate that integrates an array of
parallel plates loaded and with a small separation (vertical). The
speed of the electron is 1.63 x 10 ^ 4 m / s to the right. Its
speed when reaching the other plate, located at 2.10 cm, is 4.15 x
10 ^ 4 m / s.
a) What type of load is on each plate?
b) What is the direction of the electric field between the
plates?
c) If the plates are square and their sides measure 25.4 cm in
length, determine the load in each one.
Solutions
Expert Solution
Initial speed of electron 
Final speed of electron 
Distance between the plates 
a)
As electron gets accelerated towards the positive plate, charge on the first plate must be negative and charge on second plate must be positive.
b)
Force on electron is 
So Electric field direction and direction of motion of electron are opposite to each other.
Direction of electric plate is from second plate(+ve) to first plate(-ve).
c)
Length of each plate is 
Area of plate( square) 
Capacitance of the parallel plates is 
Gain in kinetic energy of electron between the plates = Loss in potential energy from one plate to another plate
( Potential between the plates 
, 
is the charge on each plate )
genius_generous answered 1 year agoRelated Solutions
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