Capacitance Flashcards
1
Q
What is stored on plates in a capacitor?
A
Charge
2
Q
What is the equation for the time constant?
A
τ = CR
time constant = capacitance x resistance
3
Q
What is instantaneous voltage?
A
The electric work to be done to move a basically nothing amount of charge from one point to another
4
Q
What is the equation for instantaneous voltage?
A
vc (t) = V (I - e ^(-t/τ))
instantaneous voltage x time = voltage (current - e^(- time / time constant))
5
Q
What is an induced current?
A
The current generated in a wire due to a changing magnetic field
6
Q
What are the fours types of electric filters? What does each do?
A
Low pass: allows low freq.
High pass: allows high freq.
Band pass: allows range of freq.
Notch: allows range of freq.
7
Q
What is the equation for power?
A
P = V^2 x R
