single-turn rectangular metal loop has a resistance equal to 2.6Ω and the dimensions shown in the drawing. The magnetic field at all points inside the loop varies according to B=B0e−αt, where B0=0.45T and α=200s−1. 1. What is the magnitude, in amperes, of the current induced in the loop at t=1.0ms? 2. What is the magnitude, in amperes, of the current induced in the

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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.