Skip to the content

onlineexamguide

  • Home
  • Courses
  • Engineering Study Materials
    • Electrical Engineering
    • Mechanical Engineering
    • Automobile Engineering
    • Civil Engineering
    • Computer Science Engineering
    • Chemical Engineering
  • Online Exam
    • Aptitude Tricks
    • Computer Knowledge
    • Logical Reasoning Tricks
    • Networking
  • Ghatna Chakra
  • Register
    • Instructor Registration
    • Student Registration
  • User Login
  • Home
  • Courses
  • Engineering Study Materials
    • Electrical Engineering
    • Mechanical Engineering
    • Automobile Engineering
    • Civil Engineering
    • Computer Science Engineering
    • Chemical Engineering
  • Online Exam
    • Aptitude Tricks
    • Computer Knowledge
    • Logical Reasoning Tricks
    • Networking
  • Ghatna Chakra
  • Register
    • Instructor Registration
    • Student Registration
  • User Login

Faraday law of Induction

Faraday law of Induction

Table of Contents

  • Faraday law of Induction
  • Taking the ratio of the two equations for Vs and Vp gives the basic equation for stepping up or stepping down the voltage
  • Transformation ratio
  • Current ratio

Faraday law of Induction

Faraday law of Induction

The voltage induced across the secondary coil may be calculated from Faraday law of Induction, which states that:

Faraday law of Induction

where Vs is the Current’s Instantaneous voltage, Ns is the secondary coil’s number of turns,. And is the magnetic flux flowing through a coil turn. The flux is the product of the magnetic flux density B and the area A through which it cuts,. If the turns of the coil are Oriented Perpendicular to the magnetic field lines. The area is fixed because it is equal to the Cross-sectional area of the Transformer core,. But the magnetic field changes over time depending on how the primary is excited. The Instantaneous voltage across the primary winding in an ideal Transformer equals. Because the same magnetic flux flows through both the primary and secondary coils.

Faraday law of Induction

Taking the ratio of the two equations for Vs and Vp gives the basic equation for stepping up or stepping down the voltage

The primary Functional Characteristic of any Transformer is Np/Ns, also referred to as the turns ratio. This can Occasionally be expressed as the reciprocal, Ns/Np, in the context of step-up Transformers. A transformer with primary and secondary windings of 100 and 150 turns, respectively,. Is said to have a turns ratio of 2:3, rather than 0.667 or 100:150, which is how turns ratio is Typically Expressed.

An elementary transformer has two windings mounted on top of a core made of soft iron or silicon steel. Both the core and the windings are isolated from one another. Thin, soft iron or iron with a low magnetic flux resistance makes up the core. The magnetic flux was connected to the winding. The primary winding is the one connected to the supply main,. And the secondary winding is the one connected to the load circuit.

Although in the actual construction the two windings are usually wound one over the other,. For the sake of simplicity, the figures for analyzing transformer theory show the windings on opposite sides of the core, as shown below Simple Transformer

When primary winding is connected to an ac supply mains, current flows through it. Since this winding links with an iron core, so current flowing through this winding produces an alternating flux in the core. Since this flux is alternating and links with the secondary winding also, so induces an emf in the secondary winding.

The frequency of induced emf in secondary winding is the same as that of the flux or that of the s supply voltage. The induced emf in the secondary winding enables it to deliver current to an external load connected across it. Thus the energy is transformed from primary winding to the secondary winding. By means of electro-magnetic induction without anychange in frequency. The flux of the iron core links not only with the secondary winding but also with the primary winding, so produces self-induced emf in the primary winding:

This induced in the primary winding opposes the applied voltage. And therefore sometimes it is known as back emf of the primary. In fact the induced emf in the primary winding limits the primary current in much the same way that the back emf in a dc motor limits the armature current.

Transformation ratio

The ratio of secondary voltage to primary voltage is known as the voltage transformation ratio. And is designated by letter K. i.e. Voltage transformation ratio.

Current ratio

The ratio of secondary current to primary current is known as current ratio and is reciprocal of voltage transformation ratio in an ideal transformer.

V1I1 = Input VA

V2I2 = Ouput VA

V1I1 =  V2I2

V2/V1 = I1/I2 = K

Write a comment Cancel reply

You must be logged in to post a comment.

*
  • प्रवासन के लिए अंतर्राष्ट्रीय संगठन की पहली महिला महानिदेशक एमी पोप (Amy Pope) किस देश से हैं?

  • उत्तर – अमेरिका

  • किस केंद्रीय मंत्रालय ने ‘मेरी LiFE, मेरा स्वच्छ शहर’ अभियान शुरू किया?

  • उत्तर – आवास और शहरी मामलों के मंत्रालय

  • किस देश में अत्यधिक रोगजनक एवियन इन्फ्लुएंजा (Highly Pathogenic Avian Influenza – HPAI) की पुष्टि हुई है?

  • उत्तर – ब्राजील

  • किस संस्था ने ‘राष्ट्रीय ऊर्जा प्रबंधन केंद्र’ (National Energy Management Centre) की स्थापना की है?

  • उत्तर – REMC लिमिटेड

  • किस संस्था ने ‘World Tourism Barometer’ रिपोर्ट जारी की?

  • उत्तर – UNWTO

  • ‘साइबर सुरक्षित भारत’ किस संस्था/केंद्रीय मंत्रालय की पहल है?

  • उत्तर – इलेक्ट्रॉनिक्स और आईटी मंत्रालय

  • हाल ही में ख़बरों में रहा ‘प्रोजेक्ट-स्मार्ट’ किस केंद्रीय मंत्रालय से संबंधित है?

  • उत्तर – शहरी मामले मंत्रालय-रेलवे मंत्रालय

  • किस राज्य/केन्द्र शासित प्रदेश ने ‘जगन्नानकु चेबुदम कार्यक्रम’ (Jaganannaku Chebudam Programme) का शुभारंभ किया?

  • उत्तर – आंध्र प्रदेश

  • किस देश द्वारा प्रथम चीन-मध्य एशिया शिखर सम्मेलन (China-Central Asia Summit) की मेजबानी की जाएगी?

  • उत्तर – चीन

  • किस संस्था ने ‘Race to Net Zero’ शीर्षक से एक रिपोर्ट जारी की?

  • उत्तर – UN ESCAP

Recent Posts

  • CONSTRUCTION OF Cables & Selection
  • Ferranti Effect in transmission line
  • Insulator
  • String Efficiency
  • Corona Effect in Overhead Transmission Line
  • Types of Conductor
  • Proximity Effect
  • Skin Effect
  • What is GMD and GMR in Transmission Lines
  • Synchronous Reluctance Motor
  • Pass by Value and Pass by Reference in Java
  • JAVA Methods
  • BLDC Motor
  • OOPS Concepts in Java
  • Command line argument in JAVA

onlineexamguide

onlineexamguide.com is the ultimate guide that will keep you updated about almost every Exam & Interviews . We aim to provide our readers with an informative details that have been occurring in Examination . Here at onlineexamguide.com , we focus on delivering our readers with the latest exam Pattern Mock test

We Provide Free online test to practice for Competitive exams , Online Exam, Entrance and Interview. Learn and Practice online test for Free and Prepare for your exam online with us

Quick links

  • About us
  • Privacy Policy
  • Instructor Registration
  • Student Registration
  • Java Programming
  • C programming
  • C++ programming
  • Aptitude Tricks

Follow us

Free Online Mock Test

  • UPTET PRIMARY Online Test Series
  • Super TET Mock Test in Hindi 2023
  • CTET Mock Test 2022 Paper 1
  • SSC CHSL Online Mock Test
  • SSC MTS Mock Test 2023
  • SSC CGL Mock Test
  • SSC GD Mock Test
  • ccc online test

Search

Learn and Earn

Register as Instructor - Create and sell online courses and coaching services with the best online platform onlineexamguide.com . Build a course, build a brand, earn money

Contact us

For any queries

Email us on - admin@onlineexamguide.com

We will response fast as much as we can
Copyright © 2023 onlineexamguide.com - All Rights Reserved.
error: Content is protected !!

Insert/edit link

Enter the destination URL

Or link to existing content

    No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.