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Imagine you are charging your mobile phone. The battery stores electrical energy and releases it when needed. Similarly, in electrical circuits, a device called a capacitor stores and releases electrical…

Imagine you are working on an electric motor in a workshop. The motor is running, but you need to know how fast the shaft is rotating to match it with…

Imagine a ceiling fan struggling to start on a hot day or an electric vehicle accelerating smoothly on a highway. In both cases, the hidden force behind motion is torque.…

Imagine rubbing a plastic comb on dry hair and then bringing it close to small pieces of paper. Suddenly, the tiny paper pieces jump toward the comb and stick to…

Imagine turning on your smartphone to make a call, watching television at home, or connecting to Wi-Fi. All of these everyday technologies work because of electromagnetic waves. Although we cannot…

Imagine opening a refrigerator and hearing the soft humming sound of a small fan circulating cold air inside the cooling chamber. That quiet movement of air helps maintain a consistent…

Imagine walking into a large manufacturing plant where machines are cutting metal, conveyor belts are transporting materials, pumps are circulating liquids, and compressors are generating air pressure. Almost all these…

Walk into any factory, water pumping station, or large building and you will find machines running continuously—fans spinning, pumps moving water, compressors producing air pressure, and conveyor belts moving products.…

Imagine a factory where conveyor belts move products, pumps circulate water, and large fans maintain ventilation. Behind most of these machines is a powerful and reliable device—the AC motor. From…

Imagine sitting in your home during a warm evening with the lights on. Within a few minutes, mosquitoes and flying insects start gathering around the light. Not only are these…