germblaster
Dec9-08, 02:52 PM
1. The problem statement, all variables and given/known data
Suppose a cooking device has a power of P Watts. The temperature of the bulb which radiates heat is determined to be T (in Kelvin). Write an expression for efficiency in terms of T and P.
2. Relevant equations
E = \sigmaT^{4} Stefann Boltzmann equation
\eta= heat/electrical input
3. The attempt at a solution
Efficiency = \sigmaT^{4}*A/P, where A is area.
Is the amount of heat simply given by the Stefann-Boltzmann equation?
Should I use the Planck distribution?
Is electrical input simply equatl to P?
Suppose a cooking device has a power of P Watts. The temperature of the bulb which radiates heat is determined to be T (in Kelvin). Write an expression for efficiency in terms of T and P.
2. Relevant equations
E = \sigmaT^{4} Stefann Boltzmann equation
\eta= heat/electrical input
3. The attempt at a solution
Efficiency = \sigmaT^{4}*A/P, where A is area.
Is the amount of heat simply given by the Stefann-Boltzmann equation?
Should I use the Planck distribution?
Is electrical input simply equatl to P?