The electricity supplied through a city power line is transmitted at 14,300 V. On each city block there are one or more neighborhood transformers on utility poles that transform the potential difference to 120 V, as used in homes and businesses. If the number of turns on the primary is 8580 turns how many should be on the secondary? I

The electricity supplied through a city power line is transmitted at 14,300 V. On each city block there are one or more neighborhood transformers on utility poles that transform the potential difference to 120 V, as used in homes and businesses. If the number of turns on the primary is 8580 turns how many should be on the secondary? I

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A transformer has 600 turns on its secondary and 100 turns on its primary. The primary is connected to a 20-V source. (a) What is the voltage output of the secondary? V (b) If 3 A flows in the primary coil, how much current is there in the secondary coil? A
16. A parallel plate capacitor used in a flash for a camera must be able to store 31.0 J of energy when connected to 312 V. (Most electronic flashes actually use a 1.50- to 6.00-V battery, but increase the effective voltage using a dc–dc inverter.) Assuming the capacitor completely discharges to produce a flash in 7.40×10−3 s, what average power is dissipated in the flashbulb during this time? _____kW
A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 104.2 mV. If the number of turns in the primary coil is 6908, calculate the number of turns Ng on the secondary coil of the adapter transformer. Ns turns
The primary coil of a transformer has 100 loops and is connected to a circuit with 120 volts (primary voltage). What is the output voltage (secondary voltage) if the secondary coil has 50 loops?
A 42 Ω resistor and a 20 Ω resistor are connected in parallel, andthe combination is connected across a 240 V dc line. What is the total current through the parallel combination?
A transformer has 900 turns on its secondary and 100 turns on its primary. The primary is connected to a 18-V source. (a) What is the voltage output of the secondary? V(b) If 3 A flows in the primary coil, how much current is there in the secondary coil? A
A transformer has 472 turns on its primary and 108 turns on its secondary. (a) Is this a step-up or a step-down transformer? (b) If a voltage of 103 V is applied to the primary and a current of 0.4 A flows in these windings, what are the voltage output of the secondary and the current in the secondary?voltage Vcurrent A
Why do power lines near your home contain transformers? A Transformers increase the current flowing into your home. B The transformers reduce the voltage to a level the wires in your house can safely carry. C The transformers increase the voltage supplied to your home during peak usage times. D Transformers decrease resistance in the power lines.
A power plant produces a voltage of 6.0 kV and 150 A. The voltage is stepped up to 250 kV by a transformer before it is transmitted to a substation. What is the current in the transmission line from the plant to the substation?
An ideal transformer has 600 turns on its primary side and 100 turns on its secondary side. The primary voltage is 1000 V AC a. What will the secondary voltage be with this configuration? b. What is the secondary current if the primary current is 100 A?
Electric power is transferred over large distances at veryhigh voltages. Explain how the high voltage reduces powerlosses in the transmission lines.
d k k S AV The circuit in figure consists of two identical parallel metal plates connected by identical metal springs to a 100 V battery. The surface area of one plate is 1778 m². With the switch open, the plates are uncharged, and separated by a distance d = 2 mm. When the switch is closed, the distance between the plates decreases by a factor of half. What is the spring constant, in Newton/meter, for each spring? Eo = 9x 10-12 C²/N m² a) 160000 b) 20000 c) 10240 d) 2500 e) 1280