Example of two objects exerting force upon each other without physical contact: Two charges placed close to each other can exert a force on each other without physical contact. This is possible through the electromagnetic force, which is a fundamental force that governs the interactions between charged particles.
What produces electric and magnetic fields: Electric fields are produced by electric charges, while magnetic fields are produced by moving electric charges or currents.
One practical application of a magnetic field: Magnetic levitation, or maglev trains, is a practical application of magnetic fields. In this technology, trains are suspended and propelled using magnetic fields to reduce friction and increase speed. Powerful electromagnets installed along the tracks create a magnetic field that repels the magnets on the train, causing it to levitate and move without any physical contact with the tracks.
Give an example of two objects exerting force upon each other without physical contact.How is this possible?
What produces electric and magnetic fields?
Name one practical application of a magnetic field and explain how it works.
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