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The BMW Range
3 Series
E46
New DVD Player Special For E46
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<blockquote data-quote="aidilj" data-source="post: 477842" data-attributes="member: 20536"><p>Jarance sorry but my hands are itchy and want to answer this</p><p></p><p>bks, no higher ohms doesn't mean higher watts. Resistor with the same ohms (resistance) is available at different watt (power) ratings. A correct combination need to be formulated basing on which value that works.</p><p></p><p>Higher ohms will produce less heat (energy dissipation) at the same voltage. Because the higher the resistance the less current will flow.</p><p></p><p>Example we take 12V as the reference</p><p></p><p>Jarance use 1kohm to silence the warning, you use 220ohm.</p><p></p><p>Power dissipation calc, P = V*V/R</p><p>Jarance - (12)(12)/1000 = 0.144W (only need quarter watt resistor)</p><p>BKS - (12)(12)/220 = 0.655W (need 1 watt resistor)</p><p></p><p>At the same voltage, higher resistance means less watt for the resistor. Just trying to help, hope this makes sense.</p><p></p><p>Cheers</p><p>Aidil</p></blockquote><p></p>
[QUOTE="aidilj, post: 477842, member: 20536"] Jarance sorry but my hands are itchy and want to answer this bks, no higher ohms doesn't mean higher watts. Resistor with the same ohms (resistance) is available at different watt (power) ratings. A correct combination need to be formulated basing on which value that works. Higher ohms will produce less heat (energy dissipation) at the same voltage. Because the higher the resistance the less current will flow. Example we take 12V as the reference Jarance use 1kohm to silence the warning, you use 220ohm. Power dissipation calc, P = V*V/R Jarance - (12)(12)/1000 = 0.144W (only need quarter watt resistor) BKS - (12)(12)/220 = 0.655W (need 1 watt resistor) At the same voltage, higher resistance means less watt for the resistor. Just trying to help, hope this makes sense. Cheers Aidil [/QUOTE]
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