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1.The specs of electric water heater say 1KW and 120V. The wires connecting it to the...

1.The specs of electric water heater say 1KW and 120V. The wires connecting it to the power source have resistance of 0.5 ohm. What is the actual voltage on water heater? How much power is wasted in the wires and how much power water heater actually consumes?

2.An external 14ft by 9ft wall is made of 8 inches thick concrete blocks. It has a 3ft by 4ft glass window which is ¼ inch thick. [10] a) Find the R-values of concrete and the glass. b) How much heat is conducted through that wall in 24 hours if average outside temperature is 450 F and inside temperature id 680 F?

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genius_generous answered 2 years ago
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