Which of the following combinations of capacitors has the highest capacitance?
A B C D
25% 25%25%25%
1. A2. B3. C4. D
Which of the following combinations of capacitors has the lowest capacitance?
A B C D
25% 25%25%25%
1. A2. B3. C4. D
Which of the following combinations of capacitors has the lowest capacitance?
A B C D
25% 25%25%25%
1. A2. B3. C4. D
RC Circuit
• Charge or discharge a capacitor, C, through a resistor, R.
• Start with discharge: See diagram• R=40,000Ω• C= 3000 μF• E = 3.0 V
What current flows just after switch is closed (t=0)?
• E = 3 V and Vc = 0, so I = E/R = 3.0/300=.01 A• What is charge on C at t=0.01 s? (approx)
All capacitors have V0 = 5.0v at t=0 when switches are closed. Which has the lowest voltage at t = 1s?
A B C D
25% 25%25%25%
1. A2. B3. C4. D