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Unit: Magnetic effects of electric current (Hindi)

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How do magnets attract each other over a distance? What are magnetic fields? Why do we talk about these fields? We will explore all these questions in this section
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Can we get magnetic fields without using a magnet? Turns out a man named Oersted figured out that we can, from electric current. Let's explore more in this section.
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Current carrying wires can push on tiny magnets. So can magnets push on current carrying wires? In this section, we will explore just that.
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How does electric current make your fan spin? In this section we will explore the working of an electric motor.

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"What's the big deal?" asked a reporter when Faraday announced his great discovery. He replied, "one day our whole economy will run on this". More than 200 years later, our entire world is still powered by the same phenomenon, electromagnetic induction. In this section, we will explore this.
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About this unit

Magnets are fun and mysterious. But they can do a lot more than just push and pull each other from a distance. In this chapter, we will learn about the intimate relationship between magnets and electric currents. And we will see how we can use this relationship to build amazing things like motors and generators that have become an essential part of our lives today.