wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Conceptual Questions
If you were to design an electric heater using Nichrome wire as the heating element, what parameters of the wire could you vary to meet a specific power output such as 1000W?

Open in App
Solution

Choose the voltage of the power supply you will use to drive the heater. Next calculate the required resistance R as ΔV2PKnowing the resistivity ρ of the material, choose a combination of wire length and cross-sectional area to make.(lA)=(Rρ) You will have to pay for less material if you make both l and A smaller, but if you go too far the wire will have too little surface area to radiate away the energy; then the resistor will melt.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Heating Effect of Current_Tackle
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon