A nichrome heating element across 230 V supply cosumes 1.5 kW power and heats upto a temperature of `750^@C`. A tungsten bulb across the same supply operates at a much higher temperature of `1600^@C` in order to be able to emit light. Does it mean that tungsten bulb necessarily cosumes greater power ?
A nichrome heating element across 230 V supply cosumes 1.5 kW power and heats upto a temperature of `750^@C`. A tungsten bulb across the same supply operates at a much higher temperature of `1600^@C` in order to be able to emit light. Does it mean that tungsten bulb necessarily cosumes greater power ?
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No, the steady temperature acquired by a resistor (i.e., heating element) depends not only on the power consumed but also on the power loss due to radiation, which inturn depends on the characteristics of a resistor such as surface area, emissivity, etc.
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