A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 302.1 mV. If the number of turns in the primary coil is 35753575, calculate the number of turns NS on the secondary coil of the adapter transformer.

A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 302.1 mV. If the number of turns in the primary coil is 35753575, calculate the number of turns NS on the secondary coil of the adapter transformer.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter15: Alternating-current Circuits

Section: Chapter Questions

Problem 61CP: The 335-kV ac electricity from a power transmission line is fed into the primary winding of a...

See similar textbooks

Similar questions

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
A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 69.48 mV. If the number of turns in the primary coil is 6908, calculate the number of turns Ns on the secondary coil of the adapter transformer. 11930915 Ns: turns Incorrect
A transformer is used to charge a cell phone. The number of turns on the primary coil is 600. The voltage input is 120 V and the output needs to be 9.0 V. The output current is 40 milliamperes. What is the number of turns on the secondary coil and the current in the primary. Assume the transformer is 100% efficient. The number of turns on the secondary coil is 45 and the current in the primary is 533 milliamperes The number of turns on the secondary coil is 8000 and the current in the primary is 533 milliamperes The number of turns on the secondary coil is 45 and the current in the primary is 3.0 milliamperes. The number of turns on the secondary coil is 8000 and the current in the primary is 3.0 milliamperes
Electric outlets in England are 230 V. Alice brings her electric kettle from England, where it draws 13 A, and wants to use it in the United States. She uses a step-up transformer to increase the 120 V outlet voltage to 230 V, then plugs her kettle into the secondary. What is the current in the primary in the few seconds before the 15 A circuit breaker trips?
A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 A The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A
A transformer is a device that takes an input voltage and produces an output voltage that can be either larger or smaller than the input voltage, depending on the transformer design. Although the voltage is changed by the transformer, energy is not, so the input power equals the output power. A particular transformer produces an output voltage that is 300 percent of the input voltage. What is the ratio of the output current to the input current?
The primary coil in an ideal transformer has 1000 turns of wire and an emf of 100 V. The secondary coil has an emf of 10 V. How many turns of wire does the secondary coil have? 100 1000 10,000 100,000
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?
A transformer for a household appliance changes the voltage from a 120-Volt outlet to the 20.5 Volts required by the appliance. Determine the ratio of primary to secondary coils.
A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? a. The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A b. The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A c. The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A d. The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A e. The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 A
A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 330 kV. The secondary of this transformer is being replaced so that its output can be 775 kV for more efficient cross-country transmission on upgraded transmission lines. If the power output is 1,000 MW and line resistance is 2.3O N, what are the old and new line power losses (in MW)? old line losses MW new line losses MW
Consider a transformer, used to recharge rechargeable flashlight batteries, that has 500 turns in its primary coil, 7 turns in its secondary coil, and an input voltage of 120 V. Voltage output is 1.68 v used to charge batteries. What input current, Ip is required to produce 3.2 A output current and what is the power input in watts?