Capacitance Flashcards
1
Q
What is a capacitor?
A
A capacitor consists of two pieces of metal separated by a dielectric material
2
Q
A capacitor has a charge of 3C, what will happen to the capacitance if the p.d. doubles?
A
It will stays the same
3
Q
A circuit is made up of a 5V cell and 2 capacitors in parallel. What’s the potential difference across each capacitor
A
5V
4
Q
If the capacitors have capacitances of C1 and C2 respectively, what is the total capacitance C across both capacitors?
A
1/C=1/C_1+1/C_2
