Post date: Mar 02, 2015 6:31:54 PM
Many people think that heating elements should have a high resistance to make lots of heat. In a series of three blogs, we look at why this is not the case and the resistance of a heating element should be low. In the first blog (aimed at pre-GCSE level), we try to understand that the current should be high for lots of heater power and this happens when the resistance is low. In the second blog (aimed at interested GCSE students) we think in more detail about some of the limitations of our simple assumptions and how to treat these properly. In the final blog (aimed at A-level students) we use our refined model to actually calculate the power output from a heater.