Calculating Tungsten Melting Temperature Using Circuit and Ohm's Law

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To calculate the melting temperature of tungsten using a circuit with a 3.5 V lamp, one can increase the voltage until the lamp turns off, indicating the filament has melted. By measuring the current at this point, the resistance can be determined using Ohm's Law. The initial formula, p_t = p_{20}(1 + α(t - 20)), can then be used to find the corresponding temperature for the measured resistance. Clarifications on the definitions of terms are important for accurate calculations. This method effectively combines circuit principles with material properties to determine tungsten's melting temperature.
Gyroscope

Homework Statement



p_t=p_{20}(1+\alpha (t-20))

I have a circuit with a 3,5 V lamp that has a tungsten filament. I can provide to the circuit a variable voltage. How would I find the melting temperature of tungsten?

I know p_20 and alpha and the voltage I provide. And I have an device to measure current too.

Could I just increase voltage until the lamp turns off (which means the tungsten filament melted), measure the current and by means of Ohm's Law I could find the resistance. And then with the initial formula, I could find the temperature to which corresponds this resistance.

Am i right? Sorry my poor English.
 
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knock, knock...

Sorry to reply to my own thread, but I have some urgence to solve this, please, please...
 
If you're expecting to have homework problems solved for you within 2 hours, then you're probably at the wrong place.

What happens if you follow up on your original reasoning? Also how are your terms defined?
 
You are totally right. I am sorry...
 

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