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Student & Learning Zone - City & Guilds
Help...Calculate the power dissipated by resistor 2 in the circuit here
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<blockquote data-quote="NozSpark" data-source="post: 199022" data-attributes="member: 601"><p>Lplate,,</p><p></p><p>I see your problem...</p><p></p><p>You are trying to work out the power dissipated by R2 straight away,,, you have to work out the power dissipated by the whole circuit and then split it down to individual components</p><p></p><p>The long way...</p><p></p><p>Work out the total current draw of the circuit</p><p></p><p>Calculate the total power dissipation of the circuit</p><p></p><p>Calculate the power dissipated by individual components... This bit is the inverse ratio of the resistor sizes (smaller resistances dissipate more power!)</p></blockquote><p></p>
[QUOTE="NozSpark, post: 199022, member: 601"] Lplate,, I see your problem... You are trying to work out the power dissipated by R2 straight away,,, you have to work out the power dissipated by the whole circuit and then split it down to individual components The long way... Work out the total current draw of the circuit Calculate the total power dissipation of the circuit Calculate the power dissipated by individual components... This bit is the inverse ratio of the resistor sizes (smaller resistances dissipate more power!) [/QUOTE]
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Student & Learning Zone - City & Guilds
Help...Calculate the power dissipated by resistor 2 in the circuit here
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