Simulation 6: Variable Voltage

Variable voltage, which leads to variable power is an important idea that Bell experimented with in his design process. Without the proper amount of voltage, he would be unable to make the circuit perform as he desired. This applet illustrates the idea of dissipation of power through resistors in a circuit. The components in the circuit include a windable battery, an ammeter, a resistor and a switch. While the switch is open, there is no current due to the open circuit it creates. When the switch is closed, if the battery has been charged, the power in the battery is seen to be disspated in the resistor (note the level indicator on the battery). Regardless of the position of the switch, the battery may be wound, however, if the switch is closed, the battery will not allow for any measureable charging as the power is immediately dissipated in the resistor.