Recent questions in Basic Electrical Engineering

Define voltage, current, and resistance, and state the relationship between them.

How to calculate winding of transformer?
Answer : --- ### Part 1: The Core Concepts (The "Why") Before we jump into calculations, let's understand the key principles. #### 1. The Universal EMF Equation This is the heart of all transformer ... and between the windings and the core. If you are a beginner, start with low-voltage projects first....

Learn everything about capacitors and capacitance. This guide covers the basics, how they work, key formulas (C=Q/V, C=εA/d), series/parallel circuits, and common applications. Understand one of electronics' most fundamental components.
Answer : ![][1] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=18178307702692738661 ## Capacitors and Capacitance: A Comprehensive Guide Capacitors are among the most essential and ... them for filtering or timing, capacitors are indispensable tools for any electronics engineer or hobbyist....

What is Power Factor , Unity , Lagging & Leading Power Factor Explain
Answer : Answer : ![][1] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=15964266573149624668...

When to Use Star Connection and When to Use Delta ?
Answer : ![][1] ![][2] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=2709696531258548398 [2]: https://electrical-engineering.app/?qa=blob&qa_blobid=3165450322949766875 ### **Part ... and single-phase) and unbalanced currents. | Balanced, high-power loads where reliability is critical. |...

Define resistivity and conductivity of a material.
Answer : --- ### Overview **Resistivity** and **Conductivity** are two fundamental, intrinsic properties of a material that describe how it behaves in the presence of an electric field. They are ... (high conductivity) lets water flow easily, while a very sticky surface (low conductivity) hinders it....

List the factors that affect the resistance of a metallic conductor.
Answer : The resistance of a metallic conductor is determined by four main factors. Here is a list and explanation of each factor: ### 1. Length of the Conductor (L) * **Relationship:** ... (Note: Temperature is not explicitly in this formula, as resistivity (ρ) itself is temperature-dependent.)*...

What is Electromotive Force (EMF)? How is it different from potential difference?
Answer : ### The Water Pump Analogy Imagine a water circuit with a pump and a water wheel. * **The Pump:** The pump does work on the water, lifting it up and giving it potential energy. It's the ... from a battery if you draw no current from it. The moment you use it, the terminal voltage drops slightly....

Root Mean Square (RMS) Value
Answer : Let's do the exact same process with a sine wave, which is the perfect real-world example. The principle is identical. ### The Goal is the Same Remember our goal: We have an AC sine wave voltage. We ... why a multimeter set to "AC Volts" will read 120V-it's built to show you the useful RMS value....

What is Electric Charge?
Answer : ![][1] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=16347969908108633683 --- ### **Electric Charge Explained: Properties, Types, and Coulomb's Law** Electric charge is a cornerstone ... :** One Coulomb is equivalent to the total charge of approximately **6.25 x 10¹⁸ electrons**....