A capacitor stores 5.3e-5 C of charge when connected to a 6V battery. How much charge does the capacitor store

Question

A capacitor stores 5.3e-5 C of charge when connected to a 6V battery. How much charge does the capacitor store when connected to a 9V battery?

Answer 1

7.95e-5 C

q = CV

.

Answer 2

C = q/v = 5.3e-5 C/ 6V

q = CV = [5.3e-5C/6V] x 9V

             = 5.3e-5 C x 9/6

             = 7.95e-5 C