An immersion-type heating coil is connected to a 120-V outlet and immersed in a 250-mL cup of
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An immersion-type heating coil is connected to a 120-V outlet and immersed in a 250-mL cup of water initially at 10°C. The water comes to a boil in 85 s. Assuming no heat loss, and neglecting the heater’s mass, find
(a) the power
(b) the heater’s resistance.
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