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Food Grade Home 8011 Coil Aluminum Household Foil
Why can't an induction cooker use an aluminum pan? In fact, most people's understanding is wrong or incomplete. Including many high school physics teachers when they talk about electromagnetic induction, they can't explain this problem clearly. If we search on the Internet, most of the answers we get are that iron pots are ferromagnetic materials that can be magnetized to strengthen the magnetic field and so on. But this statement is not accurate. Because iron can conduct magnetism, it can only play an obvious role when the two coils are far apart. For example, most transformers need an iron core to guide the magnetic lines of induction.
However, the coil of the induction cooker is very close to the bottom of the pot, and the bottom of the pot itself is in the place where the magnetic line of induction is the most dense, and the presence or absence of an iron core will not have much effect. Strengthening the magnetic field so the understanding of the heating effect is even more doubtful. After all, we cannot abandon the law of conservation of energy. The aluminum pan cannot be used on the induction cooker, not because it cannot conduct magnetism, but because its resistance is too small. If you can think of ways to increase the resistance of aluminum, it can be used on induction cookers. Some students may find it strange. According to the formula P=U²/R (the square of the voltage divided by the resistance) for calculating the power, shouldn't the lower the resistance, the higher the power? It may sound weird, let's do an experiment first. The experimental materials are mainly induction cooker, iron pan, aluminum foil and a socket that can display output power.
One way to increase the resistance is to reduce the cross-sectional area, that is, to make the bottom of the pot thinner. Thanks to the modern industrial society for giving us a very thin aluminum material-aluminum foil. First shape the aluminum foil into the shape of a pot, add a cup of tap water, about 500ML. After starting, you can see that the induction cooker is working normally, and air bubbles slowly appear at the bottom of the water. We turned on 800W, and finally it took a little more than 7 minutes to boil the water.
Food Grade Aluminum Foil Silver Color Household Alloy 8011 In Jumbo Rools The official name of the paper layer used for grilling is aluminum foil. Aluminum foil paper is characterized by good smoothness and heat reflectivity
