WebMar 13, 2024 · During a power outage, or when you need to brighten a dark area of your home, you can use a potato and light bulb with a few other elements to create light. When you put copper and zinc electrodes in a … Web15 hours ago · Direct current can be used to power light bulbs and other such devices without the need for any sort of conversion. On the other hand, the power supply we receive in our homes comes in the form of alternating current, or AC. ... when a loop of wire experiences a changing magnetic field, it develops an electromotive force (EMF) or in …
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WebMove a bar magnet near one or two coils to make a light bulb glow. View the magnetic field lines. A meter shows the direction and magnitude of the current. View the magnetic field lines or use a meter to show the … WebSo does the bulb light up when there's a changing magnetic field because: a moving electromagnetic field will exert a force on the free electrons of a wire to move; moving electrons is the definition of current; thus the bulb lights up. The force applied depends on the direction of the changing magnetic field, thus changing the way current flows. dewberry building
How to Light a Lightbulb With a Magnet and Copper Wire
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