Question

Investigate comprehensively electric fields and equipotential lines around and inside two parallel plates electrode system Can you explain? You can send with word.

Answer 1

Let us assume two parallel plate electrode system consist of a positively charged electrode and the another plate is negative. Now we assume for the calculation that the plates are much larger in size than the distance between them. So if we introduce a test charge in between the plates then we see that the total electric field on the charge between the paltes is almost constant, because if the charge is positive then if we place the charge at the middle of the plate then two equal and opposite force is acted on the charge from the two plates respectively and if we move further from the middle point to the each end of the plate then one then at the negative plate the attractive force acted is much greater and the repulsive force from the positive plate is reduced.So the net force acting from the positive to negative plates is constant throughout the inside of the two electrodes. Now if the charge is outside the regione between two plates then the force acting on the charge does not add to become the same but the nearer plate always acting the greater amount of force on the charge. So we get a curve electric field line from positive to negative plate .since the potential is gradient of the electric field so inside the plates potential is zero. The equipotential line and electric field lines are described as follows