Principles of a Galvanometer A galvanometer works because of a basic rule: electricity and magnetism interact. Using this idea, these devices can find and measure small electric currents. The Magnetic Field Generated by Current An electric current moving through a wire creates a magnetic field around it. This is a main rule of electromagnetism. Ampère’s … Read more
Fundamental Electrical Quantities Electrical Measurements section sets the stage by defining the main electrical parameters you often measure. It’s vital to know what each quantity means before you learn how to measure it. 1. Voltage (Potential Difference) Voltage is like the electrical pressure that pushes current through a circuit. Think of water in a pipe. … Read more
What Is a Core Balance Current Transformer? Definition and Basic Functionality A core balance current transformer is a special device designed to detect tiny differences in electrical currents. Unlike typical current transformers, CBCTs focus on the balance between multiple currents. When everything is working right, the currents flowing in different parts cancel each other out. … Read more
Introduction Imagine working on a live wire without turning off the power—that’s when a clamp meter becomes your best friend. These tools are critical for electrical testing because they let you measure current safely and quickly. As the demand for safer, more accurate tools grows in construction, maintenance, and industrial fields, understanding clamp meters is … Read more
Introduction Modern electronics rely heavily on testing and measuring signals. Without the right tools, troubleshooting or designing circuits becomes near impossible. Among these tools, the cathode ray oscilloscope (CRO) has been a staple for decades. Its role in visualizing electrical signals has been crucial for engineers, technicians, and students alike. Understanding how CROs work offers … Read more
Ampere meter is instrument which measures quantity of current in closed loop. in other words ammeter is device which measures the current of load or line. The ammeter now a days comes in multi meter as a option. The old multi meter was analog which told the quantity of current by moving a needle to … Read more
Science is not a magic. its all About research and development for the well being of mankind.
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