A square loop of wire connects the ends of a 10-ohm resistor, as shown . The loop sits perpendicular to a magnetic field of strength 0.6 T that is directed into the page in the picture at right. The field then drops to zero over a time of 3 seconds. If the loop is 10 cm high and 15 cm wide, what is the current induced in the loop?

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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.