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Integrated Concepts(a) An immersion heater utilizing 120 V
Chapter 20, Problem 67(choose chapter or problem)
Problem 67PE
Integrated Concepts
(a) An immersion heater utilizing 120 V can raise the temperature of a 1.00 × 102 -g aluminum cup containing 350 g of water from 20.0ºC to 95.0ºC in 2.00 min. Find its resistance, assuming it is constant during the process. (b) A lower resistance would shorten the heating time. Discuss the practical limits to speeding the heating by lowering the resistance.
Questions & Answers
QUESTION:
Problem 67PE
Integrated Concepts
(a) An immersion heater utilizing 120 V can raise the temperature of a 1.00 × 102 -g aluminum cup containing 350 g of water from 20.0ºC to 95.0ºC in 2.00 min. Find its resistance, assuming it is constant during the process. (b) A lower resistance would shorten the heating time. Discuss the practical limits to speeding the heating by lowering the resistance.
ANSWER:Solution 67PE