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Revision as of 14:45, 6 April 2020
20.309: Biological Instrumentation and Measurement
This is Part 2 of Assignment 6.
Ideal elements
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For each of the ideal, two-terminal elements listed below, show the symbol, label the terminals, indicate the direction of current flow, write the constitutive equation, and find an expression for the impedance, $ Z(\omega)=\frac{V}{I} $. (To find the impedance, substitute $ V=Ae^{j\omega t} $ into the constitutive equation and solve for $ \frac{V}{I} $ as a function of $ \omega $.)
- Resistor
- Capacitor
- Inductor
- Voltage source
- Current source
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Resistive circuits
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For each of the circuits below, find the voltage at each node and the current through each element. You do not have to simplify your answer. (You may leave in terms such as R1
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Equivalent circuits
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For each of the circuits in the previous problem, find two equivalent circuits — the first one consisting of a single voltage source and a single resistor, and the second one consisting of one current source and one resistor. In both equivalent circuits, the I-V curve at the Vout the port should be identical to the original circuit.
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Circuit analogies
Thermal system
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For each of the systems below, find an analogous circuit.
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Thermal system:Coffee in a thermos
Mechanical system: mass and damper