1. What is the power consumption of an electric iron if its resistance is 13.1 Q and it operates on a household circult with a voltage of 120 V? 2. Find the power dissipated in each of these extension cords: (a) an extension cord having a 0.0600 O resistance and through which 5.00 A is flowing; (b) a cheaper cord utilizing thinner wire and with a resistance of 0.300 0. 3. The diameter of 10-gauge copper wire is 8.252 mm. Find the resistance of a 1.00- km length of such wire used for power transmission.
1. What is the power consumption of an electric iron if its resistance is 13.1 Q and it operates on a household circult with a voltage of 120 V? 2. Find the power dissipated in each of these extension cords: (a) an extension cord having a 0.0600 O resistance and through which 5.00 A is flowing; (b) a cheaper cord utilizing thinner wire and with a resistance of 0.300 0. 3. The diameter of 10-gauge copper wire is 8.252 mm. Find the resistance of a 1.00- km length of such wire used for power transmission.
Related questions
Question
Transcribed Image Text:Directions: Read, understand and analyze each of the problems very carefully. Then, solve
and show your complete solutions. Encircle your final answer.
1. What is the power consumption of an electric iron if its resistance is 13.1 Q and it
operates on a household circuit with a voltage of 120 V?
2. Find the power dissipated in each of these extension cords: (a) an extension cord
having a 0.0600 n resistance and through which 5.00 A is flowing; (b) a cheaper cord
utilizing thinner wire and with a resistance of 0.300 0.
3. The diameter of 10-gauge copper wire is 8.252 mm. Find the resistance of a 1.00-
km length of such wire used for power transmission.
4. What is the resistance of a 20.0-m-long piece of 12-gauge copper wire having a
2.053-mm diameter?
5. Calculate the resistance of a piece of a 20- gauge copper wire 2 m long. The cross-
sectional area of the wire is 0.5176mm
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
