Figure P19.112A shows an immersion heater. It is just a small coil with a resistance R that
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Figure P19.112A shows an immersion heater. It is just a small coil with a resistance R that is used to heat a beverage such as a cup of tea. The heater is connected to a source of emf causing heat to be dissipated in the resistor that heats the tea (Fig. P19.112B). If a cup of tea is initially at room temperature and the immersion heater is able to heat the tea to boiling in 180 s, estimate R. Assume the heater is connected to an emf with V = 110 V.
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The power dissipated as heat raises the temperature of the tea No sketch needed We c...View the full answer
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Related Book For 
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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