Question

Figure shows plot of charge versus potential difference for four parallel plate capacitors, which have same plate area, dielectric medium but different distance between the plates. Which one of them have smallest plate distance?

Options

• 1

• 2

• 3

• 4

Answer 1

4

Explanation:

q = CV where C is a slope

`"let C" = ("k"epsilon _0 "A")/"d" Rightarrow "C" prop 1/"d"`

As slope is higher for line 4, it has higher value of capacitance and smallest plate distance