Which of the Following Statements Is Incorrect?
A)Capacitance Is Always $\Delta V$

Multiple Choice

Which of the following statements is incorrect?

A) Capacitance is always positive.
B) The symbol for potential difference between the plates of a capacitor is $\Delta V$ .
C) Water is a polar molecule.
D) When a dielectric is placed in a capacitor it serves to reduce the electric field.
E) Nonpolar molecules cannot be used for dielectric material in a capacitor.