A resistor is an electronic component that is designed to offer a desired amount of resistance to the flow of current.
Resistors have impedance
the energy stored in a resistor is
and the power dissipated by a resistor is
where I is the current and V is the voltage.
The resistance of a resistor is indicated by a series of colored circular bands around it according to the encoding summarized below.
Number Color
0 black
1 brown
2 red
3 orange
4 yellow
5 green
6 blue
7 violet
8 gray
9 white
Resistors have impedance
(1)
the energy stored in a resistor is
(2)
and the power dissipated by a resistor is
(3)
where I is the current and V is the voltage.
The resistance of a resistor is indicated by a series of colored circular bands around it according to the encoding summarized below.
Number Color
0 black
1 brown
2 red
3 orange
4 yellow
5 green
6 blue
7 violet
8 gray
9 white
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