1 carries a constant current ?1 = 80.0 ? out of the page. Wire 2 carries a constant current ?2 = 60.0 ? into the page. Wire 3 carries a constant current ?3 of unknown magnitude and direction. The distance between wires 1 and 2 is ?1−2 = 1.00 ??, the distance between wires 2 and 3 is ?2−3 = 2.00 ??.   A.) If wire 3 is removed, what is the magnitude of the net magnetic field at the position P, where wire 3 previously was located, due to wires 2 and 3?

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A: distance between two wires  (d) = 15 m Ix = 20 A Iy = 10 A length of each wire = 5 m

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Q: Find the current I2 %3D V = ? R = 1.00 N %3D V = 12.0 V 2 = ? R2 = 6.00 2 R3 = 13.00 Q V3 = ? %3D

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.