An electric utility company supplies a customer's house fromthemain power lines (120 V) with two copper wires, each of whichis30.0 m long and has a resistance of0.118 Î© per 300 m.

(a) Find the potential difference atthecustomer's house for a load current of 110 A.
1 V

(b) For this load current, find the power delivered tothecustomer.
2 kW

(c) Find the rate at which internal energy is produced in thecopperwires.
3 W

Question

An electric utility company supplies a customer's house fromthemain power lines (120 V) with two copper wires, each of whichis30.0 m long and has a resistance of0.118 Î© per 300 m.

(a) Find the potential difference atthecustomer's house for a load current of 110 A.
1 V

(b) For this load current, find the power delivered tothecustomer.
2 kW

(c) Find the rate at which internal energy is produced in thecopperwires.
3 W

An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, each of which is 50.0 m long and has a resistance of 0.108 ohms per 300 m. Find the potential difference at the customer's house for a load current of 110 A.

Unlock all answers

Related textbook solutions

Physics: Principles with Applications

Related questions

Weekly leaderboard