A toaster using a Nichrome heating element operates on 120 V. When it isswitched on at 20°C, the heating element carries an initial current of 1.35 A.A few seconds later the current reaches the steady value of 1.23 A.(a) What is the final temperature of the element? The average value of thetemperature coefficient of resistivity for Nichrome over the relevant temperaturerange is 4.5 * 10-4 (C°)-1. (b) What is the power dissipated inthe heating element initially and when the current reaches 1.23 A?
A toaster using a Nichrome heating element operates on 120 V. When it isswitched on at 20°C, the heating element carries an initial current of 1.35 A.A few seconds later the current reaches the steady value of 1.23 A.(a) What is the final temperature of the element? The average value of thetemperature coefficient of resistivity for Nichrome over the relevant temperaturerange is 4.5 * 10-4 (C°)-1. (b) What is the power dissipated inthe heating element initially and when the current reaches 1.23 A?
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A toaster using a Nichrome heating element operates on 120 V. When it is
switched on at 20°C, the heating element carries an initial current of 1.35 A.
A few seconds later the current reaches the steady value of 1.23 A.
(a) What is the final temperature of the element? The average value of the
temperature coefficient of resistivity for Nichrome over the relevant temperature
range is 4.5 * 10-4 (C°)-1. (b) What is the power dissipated in
the heating element initially and when the current reaches 1.23 A?
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