You are part of a team working in a machine parts mechanic's shop. An important customer has asked your company to provide springs with a very precise force constant You devise the electrical circuit shown in the figure to measure the spring constant of each of the springs to be provided to the customer. The circuit consists of two identi parallel metal plates free to move, other than being connected to identical metal springs, a switch, and a battery with terminal voltage AV. k www AV k www i With the switch open, the plates are uncharged, are separated by a distance d, and have a capacitance C. When the switch is closed, the plates become charged and attra each other. The distance between the plates changes by a factor f, after which the plates are in equilibrium between the spring forces and the attractive electric force between the plates. To keep the plates from going into oscillations, you hold each plate with insulating gloves as the switch is closed and apply a force on the plates that allows them to move together at a slow constant speed until they are at the equilibrium separation, at which point you can release the plates. Determine an expression fo the spring consctant in torme of C d NK and f
You are part of a team working in a machine parts mechanic's shop. An important customer has asked your company to provide springs with a very precise force constant You devise the electrical circuit shown in the figure to measure the spring constant of each of the springs to be provided to the customer. The circuit consists of two identi parallel metal plates free to move, other than being connected to identical metal springs, a switch, and a battery with terminal voltage AV. k www AV k www i With the switch open, the plates are uncharged, are separated by a distance d, and have a capacitance C. When the switch is closed, the plates become charged and attra each other. The distance between the plates changes by a factor f, after which the plates are in equilibrium between the spring forces and the attractive electric force between the plates. To keep the plates from going into oscillations, you hold each plate with insulating gloves as the switch is closed and apply a force on the plates that allows them to move together at a slow constant speed until they are at the equilibrium separation, at which point you can release the plates. Determine an expression fo the spring consctant in torme of C d NK and f
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter26: Current And Resistance
Section: Chapter Questions
Problem 37AP: A charge Q is placed on a capacitor of capacitance C. The capacitor is connected into the circuit...
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Transcribed Image Text:You are part of a team working in a machine parts mechanic's shop. An important customer has asked your company to provide springs with a very precise force constant k.
You devise the electrical circuit shown in the figure to measure the spring constant of each of the springs to be provided to the customer. The circuit consists of two identical,
parallel metal plates free to move, other than being connected to identical metal springs, a switch, and a battery with terminal voltage AV.
k
www
k =
+
AV
k
www
With the switch open, the plates are uncharged, are separated by a distance d, and have a capacitance C. When the switch is closed, the plates become charged and attract
each other. The distance between the plates changes by a factor f, after which the plates are in equilibrium between the spring forces and the attractive electric force
between the plates. To ep the plates from going into oscillations, you hold each plate with insulating gloves as the switch is closed and apply a force on the plates that
allows them to move together at a slow constant speed until they are at the equilibrium separation, at which point you can release the plates. Determine an expression for
the spring constant in terms of C, d, AV, and f.
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