Chapter 3 Flashcards
What is the equation for capacitance?
C = Q/V
What are the units for capacitance?
Farads
How do you express current in terms of voltage?
i = Cdv/dt
How do you express charge in terms of current?
q(t) = S i(t)dt + q(t0)
Where S is the integral between t and t0
How do you express voltage in terms of current?
v(t) = 1/C S i(t)dt + v(t0)
Where S is the integral between t and t0
What is the equation for the charge stored on a capacitor? (3)
1/2QV, 1/2CV^2, Q^2/2C
What is the equation for adding capacitors in parallel?
Ceq = C1 + C2 + C3
What is the equation for adding capacitors in series?
1/Ceq = 1/C1 + 1/C2 + 1/C3
What is the equation that describes the physical characteristics of capacitors?
C = £A/ d
Where £ is the dialectric constant
A is the area
d is the distance between the plates
What is the equation for voltage in terms of inductance?
v(t) = Ldi/dt
What is the unit for inductance?
Henries
L) What is the equation for current in terms of voltage?
1/L S v(t)dt + i(t0)
L) What is the equation for energy?
w(t) = 1/2 Li^2(t)
Where is the energy stored in an inductor?
In the magnetic field
How do you add inductors in series?
Leq = L1 + L2 + L3
