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Unformatted text preview: mind that there are two wires each 250 ft long. What size of copper wire is required (see table of wire resistance)? Hint: Sketch the circuit using wire resistance as R w . Assume the lamp voltage is 110 V, calculate the current to deliver 100 W to each lamp. Then calculate the line current I line . Ohms law and KVL will give equations that can be solved for R w ....
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This note was uploaded on 11/09/2011 for the course ELCT 220 taught by Professor Brice during the Spring '11 term at USC.
- Spring '11