The Resistor:
What is it?
A resistor is a two terminal electrical component that provides a voltage across its
terminals that is proportional to the current through it according to ohm's
law:
V=I*R (voltage equals current times resistance)
What is it good for?
In economic simulation, a resistor is sometimes used to sense a current
flow to provide a proportional voltage input to a voltage controlled current
source. In this way, a resistor could be used to sense the sales of a car
dealership and then provide a voltage to pay the appropriate sales commission.
Tell me more!
To the left is the symbol for the resistor. This resistor is connected between
connection N1 and N2. The value of this resistor is 1 ohm.
The SPICE Description Format for this resistor is:
R1 N1 N2 1.0
Below is a test circuit with a one amp current source driving a resistor of
one ohm. In this circuit, the resistor connects between node 1 and ground (node 0).
The SPICE format that describes this circuit is:
R1 1 0 1.0
I1 0 1 1.0
The simulation result is:
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