1. Concept 0 - Capacitance C = q V C = capacitance (Farads)
q = Charge on the capacitor (C)
V = voltage across the capacitor (V)

2. Example: A CCD pixel has a capacitance of 1. 7x10-12 F
Example: A CCD pixel has a capacitance of 1.7x10-12 F. What is the voltage across it if it has been charged 6.0x104 electron charges? (1 e = 1.602E-19)
5.7 mV

4. What is the charge on a 250 microfarad capacitor if it has been charged to 12 V?
q = CV = (250E-6 F)(12 V) = 3E-3 Coulombs
.0030 C

5. What is the capacitance of a CCD pixel if it has
What is the capacitance of a CCD pixel if it has .014 V across it when it has a charge of 2.13x10-15 C?
C = q/V = (2.13E-15 C)/(.014 V) = 1.52x10-13 F
1.52x10-13 F

6. A 0. 34 pF CCD pixel has 1350 electron charges on it
A 0.34 pF CCD pixel has 1350 electron charges on it. What is the voltage across it?
0.64 mV

7. A 0. 57 pF CCD pixel has a voltage of 2. 3 mV across it
A 0.57 pF CCD pixel has a voltage of 2.3 mV across it. How many electron charges does it hold?
about 8200 electron charges