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Factors Affecting The Heating Effect Of A Current.
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| Submitted: Mon Oct 27 2003
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Question: Factors Affecting The Heating Effect Of A Current. Planning Stage Introduction "Electricity can produce for effects: HEAT: Hairdryers/kettles, LIGHT: light bulbs, SOUND: speakers, MOTION: motors. All resistors produce heat when a current flows through them. Whenever a current flows through anything with electrical resistance then electrical energy is converted into heat energy. The more current that flows, the more heat is produced. Also, a bigger voltage means more heating, because it pushes more current through. However, the higher you make the resistance, the less heat is produced. This is because a higher resistance means less current will flow, and that reduces the heating. The amount of heat produced can be measured by putting a resistor in a known amount of water or inside a solid block and measuring the increase in temperature." (Parsons, 2000) "Current flow is accompanied by the transfer of electrical energy and it is often necessary to know...
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