Author Archives: Dr. Khuong Nguyen-Vinh

Terminals of NEMA 6-20 Receptacle - Wring 20A-250V Outlet
How to Wire a 20A 250V Outlet (NEMA 6-20): No Neutral Needed!

How to Wire a 20A – 250V Outlet (NEMA 6-20): The Ultimate Safety & Wiring [...]

14
Dec
Terminals of NEMA 5-30, 30A-125V Receptacle
How to Wire NEMA 5-30 Receptacle (30A 125V): Not for RVs!

How to Wire a NEMA 5-30 Receptacle (30A – 125V): The Complete Guide Author: Dr. [...]

14
Dec
Terminals of NEMA 5-50, 50A-125V Receptacle
How to Wire a NEMA 5-50 Receptacle (125V/50A): Ultimate Guide

How to Wire a NEMA 5-50 Receptacle (50A – 125V): The Definitive Technical & Safety [...]

14
Dec
3D visual representation of the Electrical Power Triangle on a workbench, illustrating the trigonometric relationship between Active Power (P), Reactive Power (Q), and Apparent Power (S) with phase angle theta.
Active vs Reactive Power Explained: Formulas & The “Beer Analogy”

Active, Reactive, Apparent, and Complex Power: A Comprehensive Guide Part 1: The Three Pillars of [...]

12
Dec
Professional electrician terminating #6 AWG copper wire into a double-pole 50 Amp circuit breaker within a residential electrical panel.
What Wire Size for 50A Breaker? NEC Guide (#6 Cu vs #4 Al)

What is the Suitable Wire Size for 50A Breaker and Outlet? (NEC Guide) Part 1: [...]

12
Dec
dc-machine-construction-working-types-and-applications
DC Machine: Construction, Working, Types & Applications [2025]

Comprehensive Guide to DC Machines: Construction, Working, Types & Applications Part 1: Introduction & Working [...]

12
Dec
Assortment of common capacitor types including aluminum electrolytic, ceramic, tantalum, and mica capacitors on a vintage engineering workbench.
Capacitor & Types of Capacitors: The Ultimate Guide [2025]

Capacitor & Types Of Capacitors: The Ultimate Guide Fixed, Variable, Polar & Non-Polar | 2025 [...]

12
Dec
How to Test a Capacitor with a Multimeter (3 Safe Ways)
How to Test a Capacitor with a Multimeter (3 Safe Ways)

3 Ways to Test a Capacitor: Accurate & Safe Methods (2025 Guide) Quick Summary: To [...]

12
Dec
Electronics Engineering Interview Questions
Top 65+ Basic Electronics Engineering Interview Questions [2025]

65+ Basic Electronics Engineering Interview Questions & Answers The Ultimate Guide for 2025 | Circuit [...]

12
Dec
Top 60+ Electrical Engineering Interview Questions & Answers [2025 Edition]
Top 60+ Electrical Engineering Interview Questions & Answers [2025 Edition]

60+ Electrical Engineering Interview Questions & Answers Comprehensive Guide for 2025 | Part 1: Basics, [...]

11
Dec
Top 7 Essential Books for Electricians & Apprentices (NEC 2023/2025 Guide)
Top 7 Essential Books for Electricians & Apprentices (NEC 2023/2025 Guide)

⚡️ TOP 7 ESSENTIAL BOOKS & GUIDES FOR ELECTRICIANS AND APPRENTICES (2025 EDITION) Disclaimer: Expertise [...]

11
Dec
Close-up of the NEMA TT-30R 30A 125V receptacle face, featuring the distinct 3-prong configuration designed for RVs and Travel Trailers to distinguish it from 240V outlets.
Wiring NEMA TT-30 RV Outlet: The Ultimate 30A 120V Guide [2025]

Electrical Technology | 16-20 phút How to Wire NEMA TT-30 Receptacle for RVs & Travel [...]

10
Dec
How to Wire a 50A – 250V, NEMA 6-50 Receptacle
How to Wire NEMA 6-50 Receptacle: 50A 250V Expert Guide [2025]

🤖 Quick Summary: How to Wire NEMA 6-50 To wire a NEMA 6-50 receptacle (250V/50A) [...]

05
Dec
Completed DIY 30 amp RV hookup installation at home featuring a weatherproof NEMA 3R enclosure mounted on a wooden pedestal with a connected travel trailer power cord.
How to Wire NEMA TT-30 Receptacle: The Safe 120V Guide (2025)

How to Wire NEMA TT-30 Receptacle for RVs: The Definitive 120V Guide Author: Dr. Khuong [...]

05
Dec