Physics Capacitance Question help!Watch
Then as you add charge to it, the pd increases.
The formula is V= Q/C
As you increase Q, V increases. C is constant.
If you want it in simple terms, think of the capacitance as the capacity (volume) of a container. Once you have your container its volume is fixed.
As you fill it with water (charge) the depth of the liquid (pd) inside increases.
Adding water (charge) doesn't change the actual capacity (capacitance) of the container.