Question: While demonstrating Faraday s law to her class, a physics professor inadvertently moves the gold ring on her finger from a location where a 0

While demonstrating Faradays law to her class, a physics professor inadvertently moves the gold ring on her finger from a location where a 0.60-T magnetic field points along her finger to a zero-field location in 45 ms. The 1.5-cm-diameter ring has a resistance and mass of 55 m and 15 g, respectively. (a) Estimate the thermal energy produced in the ring due to the flow of induced current. (b) Find the temperature rise of the ring, assuming all of the thermal energy produced goes into increasing the rings temperature. The specific heat of gold is 129 J>kg C.

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