C. A 5.5-kW water heater operates at 240 V. i. Should the heater circuit have a 20A or a 30A circuit breaker? ii. Assuming 85% efficiency, how long will the heater take to heat the water in a 0.2085-m3 tank from 20°C to 80°C? The density of water is 1,000 kg/m3and the specific heat capacity is 4,200 J/kg/°C.
C. A 5.5-kW water heater operates at 240 V. i. Should the heater circuit have a 20A or a 30A circuit breaker? ii. Assuming 85% efficiency, how long will the heater take to heat the water in a 0.2085-m3 tank from 20°C to 80°C? The density of water is 1,000 kg/m3and the specific heat capacity is 4,200 J/kg/°C.
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter20: Electric Current, Resistance, And Ohm's Law
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Problem 60PE: Integrated Concepts (a) What energy is dissipated by a lightning bolt having a 20,000-A current, a...
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C. A 5.5-kW water heater operates at 240 V.
i. Should the heater circuit have a 20A or a 30A circuit breaker?
ii. Assuming 85% efficiency, how long will the heater take to heat the water in a 0.2085-m3 tank from 20°C to 80°C? The density of water is 1,000 kg/m3and the specific heat capacity is 4,200 J/kg/°C.
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