Calculating Inductance for Resonant LC Circuit

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In summary, the conversation discusses the use of electric circuits to model mechanical systems in pre-digital computer days. The parameters of the circuit elements can be modified to observe their effect on the circuit's behavior. The professor gives an example of a mass-spring system and an LC circuit with a 5.0kg mass and k = 1.54. The question is posed about finding the capacitance (C) for the LC circuit to have the same resonant frequency as the mass-spring system. The formula for this is C = 1/(omega^2 * L), where omega is equal to the resonant frequency (0.56). The inductance (L) is given as 2.0H, and
  • #1
tnutty
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Homework Statement



Your professor tells you about pre-digital computer days when engineers used electric circuits to model mechanical systems. They could modify parameters of the circuit elements and see the effect on the circuit's behavior. Suppose a 5.0kg mass is connected to a spring with k = 1.54. This is then modeled by an LC circuit with 2.0H.

What should C be in order for the LC circuit to have the same resonant frequency as the mass-spring system?


I found the resonant frequency of the mass-spring system to be = 0.56.

I have solved a formula to get this :

C = 1/ (omega^2 * L)

where omega = 0.56. No I am not sure how to find the inductance. Any help.
 
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  • #2
The inductance is stated in the problem: it's 2.0H. It's the capacitance that you need to find.
 
  • #3
What does the H stand for in 2.0H? Is that the unit for inductance? I am not sure.
 
  • #4
H stands for 'Henry'. It is the units of Inductance.
 

1. What is capacitance and inductance?

Capacitance is the ability of a system to store an electric charge, while inductance is the ability of a system to store energy in a magnetic field.

2. How do you calculate capacitance and inductance?

Capacitance can be calculated by dividing the amount of charge stored by the potential difference across the system, while inductance can be calculated by dividing the amount of energy stored by the rate of change of current.

3. What is the unit of measurement for capacitance and inductance?

The unit of capacitance is the farad (F), while the unit of inductance is the henry (H).

4. How are capacitance and inductance related in a circuit?

Capacitance and inductance are inversely related in a circuit, meaning that as one increases, the other decreases. This is known as reactance and can affect the behavior of the circuit.

5. How do you measure capacitance and inductance in a circuit?

Capacitance can be measured using a capacitance meter, while inductance can be measured using an inductance meter or by using an oscilloscope to analyze the behavior of the circuit. Additionally, the values of capacitance and inductance can be calculated using known equations and measurements of charge, potential difference, and current.

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