Learn more about Electricity & Magnetism
Have you ever turned on a radio and wondered how music, news, or someone’s voice can suddenly come out of the speaker? There may be no wire connecting your radio to the broadcasting station, yet a song recorded many kilometers away can reach you almost instantly. The secret is radio waves. Radio waves in radio … Read more
Neon signs are bright, colorful, and easy to recognize. We often see them outside shops, restaurants, hotels, and theaters. Their glowing light can make words and shapes stand out beautifully in the dark. But how does a glass tube filled with gas produce such bright light? The answer comes from electricity, atoms, and a special … Read more
Electric cars are becoming more common on roads around the world. They look similar to normal cars from the outside, but inside they work in a very different way. Instead of using petrol or diesel, electric cars use electricity stored in a battery to move. In this article, we will understand how electric cars work, … Read more
What is an electric motor? An electric motor converts electrical energy into mechanical energy. The working principal of the motor is the same as that of generator except that instead of generating electricity through a rotating coil, electricity is actually supplied to motor which in turns provide mechanical energy. Electric motors come in various types, … Read more
What is an Electrical Circuit An electrical circuit is closed path through which electric current flows. We know that all kinds of electric equipment operate when electric current flows through them and that happens when there is an electric circuit through which the current flows in a loop. Components of Electrical Circuit An electric circuit … Read more
A microwave oven is useful device that helps in cooking delicious food for us. Have you wonder how it works? A microwave oven works by using microwave radiation to heat food quickly and efficiently. Microwave radiation As the name implies, it uses microwaves radiation to heat food. Microwave radiation is a type of electromagnetic radiation … Read more
You might wonder, if it really possible to lift things up without any visible support and that too in real world? The answer is yes but to a certain extent limited only due to current technological limitation. Before further explaining the answer, let’s first see how magnets work. If you observe a permanent magnetic in … Read more
A compass is a tool which tells us the direction of North Pole of Earth’s magnetic field. Once you know the direction of North Pole, all other directions can be find out easily. Hence it is a useful tool for navigation and mapping. You can also use it for outdoor activities like hiking, sailing, trekking … Read more
Have you ever wondered if it’s possible to light up a bulb without directly connecting it to a battery? The answer lies in the fascinating concept of electromagnetic induction—a principle discovered by Michael Faraday in the early 19th century. What is an electromagnetic induction? Electromagnetic induction occurs when a changing magnetic field creates an electric … Read more
What is a solenoid? A solenoid is a type of electromagnet which consists of coil of wire in a helical shape. It becomes a magnet when electric current pass through it. Usually, a movable metallic core, of ferromagnetic material such as iron is inserted into this helical coil. The magnetic field of this helical coil … Read more