Question
A parallel plate capacitor with adjustable-size square plates is placed in a circuit. How does the charge on the capacitor change as the length of the sides of the plates is increased?
1. it grows proportional to $\textrm{length}^2$
2. it grows proportional to length
3. it shrinks proportional to length
4. it shrinks proportional to $\textrm{length}^2$

(a)

Solution Video