Capacitance Flashcards
Voltage of a batery in a closed cycle is equal to
The sum of all voltages
Vc equation
Vc=Q/c or Vc=Qd/Aε0
capacitance (C) equation
Aε0/d
What is the relationship between voltage gained and voltage loss in a closed loop?
voltage gain=voltage loss
Charge of capacitor
Q=CV
Voltage of capacitor
V=Q/C
Units for capacitance
farad (F)
what does tao equal
RC
High current means what
High speed
What does Q mean?
Charge
What is constant in a series?
current
what is the voltage of a thin plate?
V(x) = sigma/2ε0(x)
Vc(t)=
Vb(1-e^(-t/tao))
What is tao
RC
What is the symbol for electric potential?
V
what is the symbol for potential energy ?
U
E=
sigma/epsilon naught
On a capacitor Q=
Sigma (.) A
What is the relationship between each resistor in a series circuit?
They each have the same current
What is the relationship between each resistor to determine current in a parellel circuit?
V/R = I
(Delta) U(total)=? when finding how much energy is stored
U12+U3+U4
(Delta)V=? when there are two POI
(kq1)/d1 - (kq2)/d2
What is capacitance?
C = Aϵ0/D
What is Farad?
Units for capacitance
What two units are equivalent for electric field strength?
V/m = N/C
Vc = ?
Qd / Aε0
Charge on Capacitor
Q = sigma * A
Capacitance
C = d/(AE)
What is the derivative of charge (Q)?
Current (I)
What is the differential equation for voltage?
R(dQ/dt) + (1/C)Q = 0
electric dipole
system of two equal but opposite charges a fixed distance apart
electric potential
potential energy per unit charge
what is a juntion?
where current in=current out
when making a circut, how should the energy in each row be related to eachother in order to prevent a short circuit?
they should all have a similiar current running though them
