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The amount of current flowing
in a circuit made up of pure resistances is directly proportional to the
electromotive forces impressed on the circuit and is inversely
proportional to the total resistance of the circuit.
Or in simpler
terms!
A steady increase in voltage, in
a circuit with constant resistance, produces a linear rise in current. A
steady increase in resistance, in a circuit with constant voltage
produces a progressively weaker current.
Ohms Law
Equations
| watts |
= |
volts |
X |
amps |
| watts |
= |
volts squared |
/ |
ohms |
| volts |
= |
amps |
x |
ohms |
| amps |
= |
volts |
/ |
ohms |
| ohms |
= |
volts |
/ |
amps |
|
|
Band
1 and 2
|
Band
3
|
Band
4 |
| Black |
0
|
x
1 ohm |
|
| Brown |
1 |
X
10 ohms |
|
| Red |
2 |
X
100 ohms |
|
| Orange |
3 |
X
1,000 ohms |
|
| Yellow |
4 |
X
10,000 ohms |
|
| Green |
5 |
X
100,000 ohms |
|
| Blue |
6 |
X
1,000,000 ohms |
|
| Violet |
7 |
|
|
| Grey |
8 |
|
|
| White |
9 |
|
|
| Gold |
|
X
0.1 ohms |
+/-5% |
| Silver |
|
|
+/-10 |
|