Question

HELP GIVING MEDALS N BECOMING A FAN!!!!!!
1. A capacitor has a capacitance of 3 pF. What potential difference would be required to store a charge of 21 pC?


3 V

21 V

7 V

0.14 V

2. A capacitor of capacitance 4 μF is connected to a 1.5 V battery. How much electrical potential energy is stored?


9.0 x 10^-6 J

2.7 x 10^-6 J

6.0 x 10^-6 J

4.5 x 10^-6 J

Answer 1

@IrishBoy123 @SolomonZelman

Answer 2

@paki

Answer 3

http://openstudy.com/study#/updates/55b521a2e4b0d48ca8eecc0a