Electrodynamometer Wattmeter: Construction & Working principle
An electrodynamometer wattmeter is defined as an electrical measuring instrument that is used to estimate both the AC and DC powers of the electrical and
Polarity Test of Transformer -Explanation and Diagrams
The polarity test of the transformer is performed to determine the direction of induced voltages in the primary winding and the secondary winding. The polarity
Resistance Formula of a Wire
This article describes the relationship between resistance and length of a material with the resistance wire formula. Resistance is the property of the material that
IP Ratings and IP Rating Chart
IP ratings classify the levels of protection against solid objects, dust, accidental contact, and water in electrical enclosures. IP ratings are key for understanding how
Drift Velocity: Definition, Formula, Derivation & Solved Examples
Drift velocity is the average velocity of electrons when an electric field is applied across a conductor. This concept explains how electric current flows at
Types of Electric Meter: Analog, Digital, Smart, Prepaid
💡 Key learnings: Electric Meter Definition: Measures electrical energy consumption in kilowatt-hours (kWh) for accurate billing, monitoring, and energy management in homes, commercial, and industrial
Auto Transformer: Definition, Diagram, Working, Advantages & Disadvantages
An auto transformer (or autotransformer) is a special type of electrical transformer with only one winding, used to step up or step down voltage. In
What is Residual Magnetism? – Its Types
Residual magnetism refers to the remaining magnetization in a circuit after removing the external magnetic field. This article describes the residual magnetism and its types.
What is the Dimensional Formula of Inductance?
The dimensional formula of inductance is [ML2T−2A−2]. In this article, we will derive this dimensional formula of inductance. What is a Dimensional Formula? The dimensional
Inductance Formula With Solved Examples
The inductance formula calculates the inductance of the inductor. This article describes the inductance formula and how to calculate inductance. When electric current flows through