9. An electric power station that operates at 35 kV and uses a 10:1 step-up ideal transformer is producing 34 MW (Mega- Watt) of power that is to be sent to a big city which is located 300 km away with only 2.5% loss. Each of the two wires are made of copper (resistivity = 1.72 x 10-8 22.m). What is the diameter of the wires? x 0.854 cm Show my other submissions

9. An electric power station that operates at 35 kV and uses a 10:1 step-up ideal transformer is producing 34 MW (Mega- Watt) of power that is to be sent to a big city which is located 300 km away with only 2.5% loss. Each of the two wires are made of copper (resistivity = 1.72 x 10-8 22.m). What is the diameter of the wires? x 0.854 cm Show my other submissions

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 62P: A man foolishly tries to fish a burning piece of bread from a toaster with a metal butter knife and...

See similar textbooks

Similar questions

Integrated Concepts (a) What energy is dissipated by a lightning bolt having a 20,000-A current, a voltage of 1.00102 MV, and a length of 1.00 ms? (b) What mass of tree sap could be raised from 18.0°C to its boiling point and then evaporated by this energy, assuming sap has the same thermal characteristics as water?
. The generator at a large power plant has an output of 1,000,000 kW at 24,000 V. (a) If it were a DC generator, what would he the current in it? (b) What is its energy output each day—in joules and in kilowatt—hours? (c) If this energy is sold at a price of 10 cents per kilowatt-hour, how much revenue does the power plant generate each day?
A man foolishly tries to fish a burning piece of bread from a toaster with a metal butter knife and comes into contact with 120-V ac. He does not even feel it since, luckily, he is wearing rubber-soled shoes. What is the minimum resistance of the path tire current follows through the person?
The human body can exhibit a wide range of resistances to current depending on the path of the current, contact area, and sweatiness of the skin. Suppose the resistance across the chest from the left hand to the right hand is 1.0 106 . (a) How much voltage is required to cause possible heart fibrillation in a man, which corresponds to 500 mA of direct current? (b) Why should rubber-soled shoes and rubber gloves be worn when working around electricity?
F RegRR Rg magnetic B = Il Rea=R, + R2 + Rg.. AV What is the average resistance of each one of the 4 resistors that are connected in series ina circuit that has an ecguivalent resistance of 68 Ohms? Your answer
0. An electric power station is producing 1.40 x 10 W of power that is to be sen o* town located 60.0 km away. Each of the two wires that comprise the trannion e resistance per kilometer of length of 400 x 10 Olpe/km. Find the power lont in beatin the wires if the voltage is stepped up from 2200 V to 20000 V using an ideal tranlorr. a) 1.21 x 10 Watts b) 2.32 x 10 Watts c) 1.12 x 10 Watts d) 5.59 x 10 Watts e) 1.16 x 10 Watts nhilo L4.00 yu which have their tratis
= The emfs in the figure below are &₁ = 5.00 V and E₂ = 21.0 V. The resistances are R₁ when the switch is in the following states. (a) open I1 0.2295 R4 12: 13: = 0.2295 14 = 0 = 0.2295 (b) closed I1 = 0.246 14 = ww A A A A A A A www R₁ R₂ ww R3 12: = 0.226 13: = 0.226 0.076 X Your response differs from the correct answer by more than 100%. A E2 15.50, R₂ = 30.5 , R3 = 45.5, and R4 = 58.0 Q. Find the magnitude of the current in each resis
Two 23.0 cm long parallel wires in the diagram above are separated by 4.50 mm. For what value of the resistor R (in ohm) will the force between the two wires be 2.50 x 10-5 N?
Whale and Kanmuro are two islands located in the Chimera archipelago. These two areseparated by a distance of 24 miles. A power link is to be established between them. Thepower link delivers a maximum power of 600 MW at full capacity with an operating voltageof 500 kV. a. Solve for the current at full power capacityb. Solve for the resistivity of the cable, assuming a conductor diameter of 2.5 cm
R1 S R3. R2 4. Determine in the current in each resistor given that R1 = R2 = R3 = 1N, the capacitance C = 0.5 µF, and potential across the batter of E = 2V when the switch is closed at t = 0. Determine then after some time (t = 0) after the switch is closed the currents in each resistor.
A 1500 W microwave oven runs off of a 240 V supply. The current drawn is by the microwave is 6.25Amps a) If the electricity cost is $0.0925 per kWh, how much does it cost to run the microwave for 5 min?
4. Whale and Kanmuro are two islands located in the Chimera archipelago. These two are separated by adistance of 20 miles. A power link is to be established between them. The power link delivers a maximumpower of 600 MW at full capacity with an operating voltage of 500 kV.a. Solve for the current at full power capacityb. Solve for the resistivity of the cable, assuming a conductor diameter of 1.5 cm