Part AA model-train transformer plugs into 120-V ac anddraws 0.32 A while supplying 7.8 A to the train.What voltage is present across the tracks? Assume 100% efficiencyExpress your answer to two significant figures and include the appropriate units.Vs =ValueUnitsSubmitRequest Answer

Answered: Image /qna-images/answer/d7c8b0d7-47f0-43d4-8c18-d91814643d86.jpg

Answered: A model-train transformer plugs into…

Science

Physics

A model-train transformer plugs into 120-V ac and draws 0.32 A while supplying 7.8 A to the train.

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

Consider a transformer in which the primary has 400.0 turns and the secondary 50.0. Given an input voltage of 440.0V what would be the output voltage? 30.0 V 55.0 V 3520.0 V 15.0 V 440.0 V
A step-up transformer is designed so that the output of its secondary winding is 2000 V when the primary winding is connected to a 110-V line voltage. If there are 100 turns in the primary winding, how many turns are there in the secondary winding? 1820 2200 200 18
The electric train model transformer plugs into 220-V ac and draws 0.35 A while supplying 10.5 A to the train, (a) What voltage is present across the tracks? (b) Is the transformer step-up or step- down?
33. A transformer has a coil of 1000 turns wound on its central core and the terminals of the coil are connected to a mains of 240 V supplying a current of 120 mA. Another coil of 50 turns is wound on the first coil and its terminals connected to a radio of power 24 W. Which of the following is NOT correct The turns ratio of this transformer is 20 : 1 The output current is 0.20 A, The efficiency of the transformer is 83.3 % This is a step down transformer A B D
Consider an ideal transformer that steps 120 volts up to 1000 volts. 2940 turns of wire. Determine the number of turns of wire in the primary coil. OA: 150 OB: 169 OC: 191 OD: 216 OE: 245 OF: 276 G: 312 OH: 353 The frequency is 60 Hz. The secondary coil has
X2. A transmission line that has a resistance per unit length of 4.50x10−4 /m is to be used to transmit5.00 MW across 400 mi (6.44x105 m). The output voltage of the source is 4.50 kV. (a) What is the lineloss if a transformer is used to step up the voltage to 500 kV? (b) What fraction of the input power is lostto the line under these circumstances? (c) What If? What difficulties would be encountered in attemptingto transmit the 5.00 MW at the source voltage of 4.50 kV?
A transformer is rated at 303W and transforms a higher AC Vrms to 240V-AC. The number of turns in the lower voltage coils is 316. What is the peak alternating current (in AA) in the higher-voltage coils of the transformer if it has 615 turns?Note: 0.649 and 1.26 are wrong answers. :(
A transformer is rated at 640W and transforms a higher AC V rms to 456V-AC. The number of turns in the lower voltage coils is 213. What is the peak alternating current in A in the higher voltage coils of the transformer if it has 235 turns?
A transformer is comprised on 121.92turns on the primary and 35.82 turns on the secondary. If the desired secondary voltage is 12.18 volts, what should the voltage be on the primary?
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. The turns ratio of the transformer is 45:1. The primary coil is plugged into a standard 120-V outlet. The current in the secondary coil is 1.9 x 10-3 A. Find the power consumed by the air filter.
A 120-V AC input is given to the primary of an ideal transformer with 800 loops at the primary and 200 loops at the secondary. What is the voltage at the secondary side? ○ 40 V ○ 480 V 120 V ○ 30 V
A step-up transformer has 2 turns in primary coil and 10 turns in the secondary coil. Astudent applies 5 Volts and 1 Ampere DC in the primary coil. What is the output in the secondary coil?