A transformer is used to supply a 11.25 V model trainwith power from a 128 V wall plug. The train operatesat 96 W of power. (1.25+1.25+1+0.5=4 marks)(a) What is the current in the secondary coil of thetransformer in ampere?(b) What is the current in the primary coil in ampere?(c) What is the ratio of the number of primary tosecondary turns?(d) What type of transformer is this transformer

Answered: Image /qna-images/answer/0ff30292-00bf-44be-92c9-50da97e14255.jpg

A transformer is used to supply a 11.25 V mo with power from a 128 V wall plug. The train at 96 W of power. (1.25+1.25+1+0.534 marks (a) What is the current in the secondary coil c transformer in ampere?

A transformer is used to supply a 11.25 V mo with power from a 128 V wall plug. The train at 96 W of power. (1.25+1.25+1+0.534 marks (a) What is the current in the secondary coil c transformer in ampere?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 5STP

See similar textbooks

Similar questions

If a current is 2.0 A, bow many turns per centimeter must be wound on a solenoid in order to produce a magnetic field of 2.0103 within it?
What is the rate at which the current though a 0.30-H coil is changing if an emf of 0.12 V is induced across the coil?
The current in a long solenoid of radius 3 cm and 20 turns cm is varied with time at a rate of 2 A/s. Find the electric field at a distance of 4 cm from die center of the solenoid.
Consider a transformer consisting of a primary coil with 498 turns, a secondary coil with 117 turns, and an input voltage of 113V. What input current is required to produce a 6.97 A output?
A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 325 kV. The secondary of this transformer is being replaced so that its output can be 760 kV for more efficient cross-country transmission on upgraded transmission lines. If the power output is 1,000 MW and line resistance is 1.85 Ω, what are the old and new line power losses (in MW)?
What is the voltage output (in V) of a transformer used for rechargeable flashlight batteries, if its primary has 525 turns, its secondary 8 turns, and the input voltage is 122 V? What input current (in mA) is required to produce a 4.00 A output? What is the power input (in W)?
Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once converted this voltage to 360 kV. The secondary coil of this transformer is being replaced so that its output can be 740 kV for more efficient cross-country transmission on upgraded transmission lines. If the overall power output is 1000.0 MW and line resistance is 2.00 Ω, what was the power loss, in watts, in the old power lines which left the plant?
A power transmission line feeds input power at 2300 V to a stepdown transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?
A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 315 kV. The secondary coil of this transformer is being replaced so that its output can be 725 kV for more efficient cross-country transmission on upgraded transmission lines. V1 = 315 kVV2 = 725 kV What is the ratio of turns in the new secondary to the number of turns in the old secondary? What is the ratio of new current output to the old current output for the same power input to the transformer? If the upgraded transmission lines have the same resistance as the original ones, what is the ratio of new line power loss to the old?
The voltage and current on the primary of a transformer are 39.61 volts and 9.49 amps, respectively. If the voltage on the secondary is measured as 10.88 volts, what is the current in the secondary?
The ratio of number of windings on the primary side to the number of windings on the secondary side of a transformer is 10:1. If the voltage on the orimary side is 120V, what would be the voltage on the secondary side?
An instrument requires 2.500 A current to operate. The primary coil of a transformer draws a 5.000 A current. The secondary coil of the transformer nec turns. Find the number of turns in the primary coil. If Nsec=5500turns