1) An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, each of which is 68.0 m long and has a resistance of 0.107 ? per 300 m. a) Find the potential difference at the customer's house for a load current of 108 A. b) For this load current, find the power delivered to the customer. 2) A copper cable is designed to carry a curent of 200 A with a power loss of 4.00 w/m. What is the required radius of this cable?
1) An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, each of which is 68.0 m long and has a resistance of 0.107 ? per 300 m. a) Find the potential difference at the customer's house for a load current of 108 A. b) For this load current, find the power delivered to the customer. 2) A copper cable is designed to carry a curent of 200 A with a power loss of 4.00 w/m. What is the required radius of this cable?
Chapter9: Current And Resistance
Section: Chapter Questions
Problem 55P: A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any...
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1) An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, each of which is 68.0 m long and has a resistance of 0.107 ? per 300 m.
a) Find the potential difference at the customer's house for a load current of 108 A.
b) For this load current, find the power delivered to the customer.
2) A copper cable is designed to carry a curent of 200 A with a power loss of 4.00 w/m. What is the required radius of this cable?
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