| Interactive Tool |
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This simulator has 3 sliders which allow you to alter the supply voltage from 0 to 240V and the resistances of the supply cables and a load on a circuit.
Sliders can be dragged to approx positions and then fine tuned by using left and right arrows.
Checkboxes also allow the values of the circuits equivalent resistance and drawn current to be shown (as per resistors in series calcs). Two others show what the voltage drops would be across these cables and load along with the power consumed by the cables and load.
By changing these parameters you can investigate the effects of various combinations of cable resistaOn changing these sliders the values in the Ohms Law triangle in the top right adjust automatically and a graph changes.
It has two purposes
At a constant temperature, the electrical current flowing through a fixed linear resistance is directly proportional to the voltage applied across it, and also inversely proportional to the resistance.
"The electrical current flowing through a fixed linear resistance is directly proportional to the voltage applied across it" means that as the voltage increase by a certain percentage so will the current.
"inversely proportional to the resistance" means that as the resistance increases the current will decrease..
The following steps should be carried out and notes taken on what you notice.