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This circuit simulation demonstrates the nature of Ohm's Law. Ohm's Law states that the relation between current and resistance is indirectly proportional while the resistance and voltage is directly proportional.
To show and understand this relationship, let's use this simulation. Feel free to adjust any values you wish, but one easy element to adjust is resistance.
Click on one of the resistors (in either the voltage source or current source circuit) and look at the bottom of the screen. You will see a wrench icon in the bottom left, now click that. Then at the bottom right at the bottom you will see a wheel where you can move the yellow arrow to adjust the resistance.
Now note what happens to the flowing green dots in the voltage source circuit or the voltage gain in the current source circuit. As resistance is changed in the voltage source circuit, the current will also change indirectly proportional to the resistance value, while the voltage stays the same. However in the current source circuit, the voltage difference will change directly proportional with the value of the resistance, while the current stays the same.
Again, feel free to adjust any values you feel until you understand and see the relationship between each circuit characteristic.
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