Question 1
In an RC circuit, how many time constants must elapse if an initially uncharged capacitor is to reach 80% of its final potential difference?
◦
2.2
◦
1.9
◦
1.6
◦
3.0
◦
5.0
Question 2
In an RC circuit, what fraction of the final energy is stored in an initially uncharged capacitor after it has been charging for 3.0 time constants?
◦
0.84
◦
0.90
◦
0.75
◦
0.60
◦
0.03