Two large thin conducting plates with small gap in between are placed in a uniform electric field E (perpendicular to the plates). Area of each plate is A and charges +Q and -Q are given to these plates as shown in the figure. If points R, S and T as shown in the figure are three points in space, then the

Question

G1 Physics · Accepted Answer

Step 1: The fields produced by the ±Q plates cancel outside the pair and add between them, giving an additional Q/(ε₀A) between the plates. Step 2: Superpose this with the uniform external field E. Therefore outside on the left (R) the field remains E, while between the plates (S) it is E+Q/(ε₀A). Step 3: A and D are correct.