I=kV^n filament lamp hnc assignment

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SUMMARY

The discussion centers on the equation I=kV^n, which describes the behavior of a filament lamp. The variable k represents a coefficient with units of amperes per volt raised to the power of n, while n is a dimensionless exponent that characterizes the relationship between current (I) and voltage (V). Participants clarify that k and n are related to the temperature and resistance characteristics of tungsten, the metal used in filament lamps. Understanding these parameters is crucial for analyzing the electrical properties of filament lamps.

PREREQUISITES
  • Understanding of electrical circuits and Ohm's Law
  • Familiarity with the properties of tungsten as a filament material
  • Knowledge of temperature coefficients of resistance
  • Basic grasp of dimensionless numbers in physics
NEXT STEPS
  • Research the temperature coefficient of resistance for tungsten
  • Explore the derivation of the I=kV^n equation in the context of filament lamps
  • Study the impact of temperature on the resistance of materials
  • Learn about the applications of filament lamps in electrical engineering
USEFUL FOR

This discussion is beneficial for physics students, electrical engineers, and anyone studying the thermal and electrical properties of materials used in lighting technologies.

paul115
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Homework Statement


what does k and n relate to? i can work them out but don't know exactly what they are.


Homework Equations


I=kV^n


The Attempt at a Solution


i think the k and n have something to do with temperature and the tungsten metal in the lamp (coefficient of resistance?)? if anyone can help that would be much appreciated.
 
Last edited:
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The n is just a dimensionless number, and the k is a coefficient with units of A/V^n.
 

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