A 100VA single-phase transformer inside a refrigerator has 100 turns in its primary coil and 20 turns in its secondary. A 120v ac source is connected to the primary. a. Is this an example of a step-up or a step-down transformer? b. What is the secondary voltage? c. Indicate why a transformer is needed in a fridge – why two different voltages are needed in a fridge, and indicate a part of the fridge that is powered by the secondary voltage of this transformer. d. Ifa 202 load is connected to the secondary, what percentage of its rated power will the transformer supply? e. If the primary is reduced to 90 turns, what will the secondary voltage be with the same 120v primary source?

A 100VA single-phase transformer inside a refrigerator has 100 turns in its primary coil and 20 turns in its secondary. A 120v ac source is connected to the primary. a. Is this an example of a step-up or a step-down transformer? b. What is the secondary voltage? c. Indicate why a transformer is needed in a fridge – why two different voltages are needed in a fridge, and indicate a part of the fridge that is powered by the secondary voltage of this transformer. d. Ifa 202 load is connected to the secondary, what percentage of its rated power will the transformer supply? e. If the primary is reduced to 90 turns, what will the secondary voltage be with the same 120v primary source?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

When secondary is fully loaded, transformer regulation is less than 1 percent. It shows that it is a good transformer. T or F
Which of the following is the range of excitating current (in percent) of its rated current for a small distribution transformer? 25 Equal to rated current 6 None of option OO0O
Experimental Values: 200 800 100 1002 Table - Measured Values Input voltage Input Current Output Voltage Output current Vp [V] Ip [A] Vs [V] Is [A] 5.1 0.916 15 0.166
Please ? help o have no knowledge in this field With explanations Part c, d and e please only please
Which of the following does not change in a transformer Select one: O a. voltage and frequency changes O b. Frequency O c. Voltage O d. None of these
The rated power of a certain transformer is 1 kVA. The transformer operates at 60 Hz and 120 V ac. at 60 Hz and 120 V ac. The secondary voltage is 600 V. (a) What is the maximum current at the load? (b) What is the smallest RL value that can be excited? (c) What is the largest capacitor that can be connected as a load?
A three-phase uncontrolled bridge rectifier delivers power to a resistive load of 10.The output voltage of the rectifier is 400 V DC. The rating of source side of three phasedelta – star transformer is
I need the expert's solution with an explanation of the reason.
Please help with the solution.
The value of A =436, B=57, C =7
1. How to create a magnetic field with the use of electricity? 2. Why an Alternating Current can only be used in transformers? 3. How basic transformer works/principles ? 4. Compare and Contrast: Step-Up and Step-down transformers solve all or will dislike answer Solve all Parts
8 x₁ = 3₁60 x₂= 0.04552 A 10 transformer 3300/400v has the following details R₁ =0.75-√2 R₂=0,011-2 The secondary winding is connected to a coil having a resistance of 4.5 st & Inctive reactanc of 3.22. Calculate the secondary terminal voltage & the power consumed by the coil.