I/V graph of Filament Lamp


Filament lamp

  • From the I/V graph, the ratio V/I increases as current increases.
  • Resistance of the filament lamp increase with temperature.

 

Reason: As the potential difference across a filament lamp increases, the current increases and the energy dissipated, as heat, increases, resulting in a higher temperature. As the temperature increases, resistance of the filament increases. The collision between the free electrons and the lattice ions increases due to more rigorous vibration of the lattice ions.

 

iv graph of filament lamp

 


Back To Current of Electricity (A Level)

Back To A Level Topic List


Sharing is caring:
Mini Physics

Administrator of Mini Physics. If you spot any errors or want to suggest improvements, please contact us.

5 thoughts on “I/V graph of Filament Lamp”

Leave a Comment