Formula for RLC circuit amperage

AI Thread Summary
A formula for current in a series RCL circuit can be derived using resonance frequency, current at resonance, capacitance, voltage, and resistance. The discussion emphasizes the importance of understanding transient response when the circuit is closed. Lecture notes from a university provide a detailed explanation of RLC circuits, starting from page 121. Participants are encouraged to review existing resources before asking questions. Comprehensive resources are available online for further study of transient response in RLC circuits.
jforce93
Messages
26
Reaction score
0
Does anyone have a formula for the current in a series RCL circuit, if I have the: resonance frequency, current at resonance, capacitance (only one resistor, one capacitor, and one inductor), the voltage of the battery attached, and resistance?
 
Physics news on Phys.org
Do you want the transient response starting when the circuit is closed?
 
MisterX said:
Do you want the transient response starting when the circuit is closed?

Yes please!
 
Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Imagine a charged sphere at the origin connected through an open switch to a vertical grounded wire. We wish to find an expression for the horizontal component of the electric field at a distance ##\mathbf{r}## from the sphere as it discharges. By using the Lorenz gauge condition: $$\nabla \cdot \mathbf{A} + \frac{1}{c^2}\frac{\partial \phi}{\partial t}=0\tag{1}$$ we find the following retarded solutions to the Maxwell equations If we assume that...
View full post »

Thread 'Do electron density waves accompany EM waves in coaxial cables?'

Maxwell’s equations imply the following wave equation for the electric field $$\nabla^2\mathbf{E}-\frac{1}{c^2}\frac{\partial^2\mathbf{E}}{\partial t^2} = \frac{1}{\varepsilon_0}\nabla\rho+\mu_0\frac{\partial\mathbf J}{\partial t}.\tag{1}$$ I wonder if eqn.##(1)## can be split into the following transverse part $$\nabla^2\mathbf{E}_T-\frac{1}{c^2}\frac{\partial^2\mathbf{E}_T}{\partial t^2} = \mu_0\frac{\partial\mathbf{J}_T}{\partial t}\tag{2}$$ and longitudinal part...
View full post »
Thread 'Recovering Hamilton's Equations from Poisson brackets'

Thread 'Recovering Hamilton's Equations from Poisson brackets'

The issue : Let me start by copying and pasting the relevant passage from the text, thanks to modern day methods of computing. The trouble is, in equation (4.79), it completely ignores the partial derivative of ##q_i## with respect to time, i.e. it puts ##\partial q_i/\partial t=0##. But ##q_i## is a dynamical variable of ##t##, or ##q_i(t)##. In the derivation of Hamilton's equations from the Hamiltonian, viz. ##H = p_i \dot q_i-L##, nowhere did we assume that ##\partial q_i/\partial...
View full post »

Similar threads

I Question about Capacitor current and electromagnetic induction
Replies
16
Views
1K
A Measurement uncertainty due to thermal noise
Replies
4
Views
2K
I How do I calculate the expected Gain?
Replies
1
Views
1K
B A question about induced current in LC circuits
Replies
4
Views
1K
Basic question about RLC circuits
Replies
32
Views
2K
B Why does my LC circuit not oscillate its energy between Electric & Magnetic fields?
4
Replies
152
Views
6K
B Why do capacitors not discharge everything immediately in LC circuits?
Replies
15
Views
1K
Resonant frequency of L - R||C circuit
Replies
21
Views
1K
A Advice for 100 MHz resonator
Replies
11
Views
279
Series RLC and Parallel RLC circuits
Replies
15
Views
5K

Hot Threads

Recent Insights

Back
Top