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Magnifying Glass Tilted Right

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Water Wave

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Hey physics enthusiast! Ever wanted to recreate some of the most groundbreaking experiments in history? 🎩✨ Let&#39;s dive into Faraday&#39;s world of electromagnetic induction and see what all the buzz is about!

Things you need

<ul>
	<li>A bar magnet (like the ones from your science kit)</li>
	<li>A solenoid (fancy term for a coil of wire)</li>
	<li>A galvanometer (a super sensitive ammeter)</li>
</ul>

Faraday did it over a decade, but you can recreate it in minutes!

<ul>
	<li>Coil &amp; Magnet: Set up your coil and connect it to the galvanometer. As you move the magnet towards the coil, keep an eye on that meter! What direction is the current going in?</li>
	<li>Real-World Analogy: Imagine you&#39;re at a race. The faster you run (move the magnet), the louder the audience (current) cheers!</li>
	<li>Flipping the Magnet: Now, flip the magnet around and bring its south-seeking pole close to the coil. Notice any difference?</li>
	<li>Tip: Remember the rule from Topic D.2 to determine the magnetic pole at the coil end.</li>
	<li>Moving Away: Move the magnet away from the coil. Try with both the north and south poles. What do you observe?</li>
	<li>Real-World Analogy: It&#39;s like trying to walk away from a puppy. The coil might just &quot;pull&quot; you back!</li>
	<li>Change the Speed: Increase, decrease... experiment with the magnet&#39;s speed. How does the current change?</li>
	<li>Shake It Up!: Try moving the coil while the magnet&#39;s still. And then, move both in the same direction. For some extra fun, see what happens when you tilt the magnet or pass it through the coil.</li>
	<li>Comparisons: Look at the directions and sizes of the currents. Can you find a pattern?</li>
</ul>

<ul>
	<li>Motion Matters: Current is only seen when there&#39;s motion between the coil and magnet. No motion = no current. It&#39;s like a dance, one partner needs to move to make things exciting!</li>
	<li>Opposition Play
	<ul>
		<li>North pole of the magnet in the coil = Coil&#39;s current creates another north pole to repel the magnet.</li>
		<li>South pole? The coil forms a south pole to again repel the magnet. It&#39;s like the coil&#39;s saying, &quot;Hey, stop right there!&quot;</li>
		<li>Real-World Analogy: It&#39;s like trying to push two identical poles of magnets together. They resist and push each other away!</li>
	</ul>
	</li>
	<li>Change Resistor: The system tries its best to oppose any changes in the magnetic flow. When the magnet moves away, the coil seems to say, &quot;Wait, come back!&quot; and tries to attract it.</li>
	<li>Speed Demons: The faster you move, the larger the current. It&#39;s like when you pedal faster on your bike, you go further and faster!</li>
	<li>Positioning Matters: The maximum effect is when the magnet&#39;s axis is perpendicular to the coil&#39;s cross-section.</li>
</ul>

Real-World Analogy: Think of it like adjusting an antenna for the best signal on an old TV!

&nbsp;

So, what&#39;s the big deal? 🤔 Faraday&#39;s experiments show that there&#39;s a beautiful dance of forces at play when magnets and coils come together. By playing with these forces, we&#39;ve unlocked the power to generate electricity and changed the world! 🌍💡

&nbsp;

Remember, physics isn&#39;t just about numbers and laws; it&#39;s about understanding the universe&#39;s rhythm. Dance to it, experiment with it, and have fun! 🎉🔬🧲

Recreate Faraday's Electromagnetic Induction Experiment

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Higher Level

Physics HL

Theme D - Fields

Recreate Faraday's Electromagnetic Induction Experiment

Table of content

Basic Setup 🔍

Unlock the Full Content!

Theme D - Fields

Recreate Faraday's Electromagnetic Induction Experiment

Table of content

Basic Setup 🔍

Unlock the Full Content!