Tech4Ultra Electrical

Tech4Ultra Electrical is a trusted platform for electrical and electronics engineering tutorials, concepts, formulas, and interview questions—all in one place.

Featured Articles

What is Schottky Effect?
Electronics, Basic Electronics, Electronic Devices

Understanding the Schottky Effect: Field Enhanced Thermionic Emission Explained in Depth

Written by:
Eng. John Frame
/

Electron emission might sound like something reserved for physicists in lab coats and thick glasses, but it’s actually one of the most essential processes driving modern electronics. Whether you’re firing …

What is Transformer Efficiency?
Machines, Transformer, Transformer Basics

Transformer Efficiency Explained: Calculation, Losses, and Optimization Strategies

Written by:
Eng. John Frame
/
What are Thermoelectric Power generators?
Power Systems, Generation, Generation of Electric Power

Thermoelectric Generators Explained: How the Seebeck Effect Powers Clean Energy

Written by:
Eng. John Frame
/
what is Space Charge?
Basic Electrical, Basics, Fundamentals

Understanding Space Charge: Effects, Laws, and Applications in Modern Electronics

Written by:
Eng. John Frame
/
What Is a Star Delta Starter
Machines, Electric Motor

Star Delta Starter: Comprehensive Guide to Working, Circuits, and Applications

Written by:
Eng. John Frame
/

Latest Articles

What is Rise Time?
Power Systems, Control Engineering, Control Systems

Rise Time: Definition, Formula, and Practical Examples

Written by:
Eng. John Frame
/
What is Megger?
Power Systems, Electrical Measurement, Instrument

What is a Megger? Working Principle and Applications

Written by:
Eng. John Frame
/
What is Energy Quanta?
Basics, Physics Articles, Quantum Theory

Energy Quanta: The Foundation of Quantum Theory

Written by:
Eng. John Frame
/
What is Photometry?
Basics, Illumination Engineering, Theory of Light

Photometry Explained: How We Measure Light the Way Humans See It

Written by:
Eng. John Frame
/
What is Biomedical Instrumentation?
Electronics, Biomedical Instrumentation, BMI Introduction

Biomedical Instrumentation: Overview, Devices, and Applications

Written by:
Eng. John Frame
/
What is Eddy Current Theory and Applications?
Machines, Transformer, Transformer Basics

Eddy Currents Explained: Theory, Applications, and Real-World Innovations

Written by:
Eng. John Frame
/
What are the Small and Large Motor Protection Scheme?
Power Systems, Protection, Protection Scheme

Motor Protection Guide: Types, Devices, Faults & NEC Selection Tips

Written by:
Eng. John Frame
/
What is a Voltaic Cell
Basics, Batteries, General Battery Knowledge

Voltaic Cell: Definition, Working, and Examples

Written by:
Eng. John Frame
/
Arduino vs Raspberry Pi
Electronics, Digital Electronics

Arduino vs Raspberry Pi: Which One Should You Use?

Written by:
Eng. John Frame
/
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