What&#x27;s more it claims that friction is the biggest source of losses in an electric motor, when it&#x27;s actually a very minor source of losses. The biggest losses are from resistive heating. See section &quot;Motor Efficiency&quot; at:<p><a href="http:&#x2F;&#x2F;www.nrcan.gc.ca&#x2F;energy&#x2F;products&#x2F;reference&#x2F;15297" rel="nofollow">http:&#x2F;&#x2F;www.nrcan.gc.ca&#x2F;energy&#x2F;products&#x2F;reference&#x2F;15297</a>