A 5.5-kW water heater operates at 240 V. 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 20C to 80C?The density of water is 1,000 kg/m3 and the specific heat capacity is 4,200 J/kg/C.
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
A 5.5-kW water heater operates at 240 V.
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 20C to 80C?The density of water is 1,000 kg/m3
and the specific heat capacity is 4,200 J/kg/C.
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