Filament Lamp Graph Explained. Begingroup The power heating the filament is the product of voltage and current both are negative on the left side of the graph so the power is positive one can never get power out of a filament so it has to be positive. It contains a thin coil of wire called the filament.
Jan 12 2009 The question is asking you to explain the shape of a graph. Here you need use your knowledge of physics to explain why the resistance changes. Michael Lipphardt Engineer at Quality Electrodynamics 2015-present Answered 4 years ago.
Current through a resistor is directly proportional to the potential difference.
Such a resistor is called an ohmic conductor. If it is not straight then the device can be considered non-ohmic. The graph will not be the same shape as the one in the 1st post. Resistance of a Filament Lamp In this lesson we will Describe the currentpotential difference graphs for an ohmic conductor and for a filament lamp.
