Ohm's Law

German Deutsche Version French Version française

This applet shows a simple circuit containing one resistor. In addition there is a voltmeter (parallel to the resistor) and an ammeter (in series with the resistor).

You can select the maximum voltage and maximum amperage values tolerated by the meters by using the choose boxes. If you see the warning "Maximum exceeded!", you have to choose an adequate measuring range. Resistance (R) and voltage (U) can be changed with the four buttons. On the bottom right you see the values of voltage (U) and amperage (I).

Voltage and current are directly proportional in a metallic conductor of constant temperature.

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© Walter Fendt, November 23, 1997
Last update: June 19, 1998

Source file (German version): Ohm.java

This applet is part of the Contemporary College Physics Simulation Library.