A magnetic field is perpendicular to the plane of a wire loop containing a resistor, as shown in the figure. The magnitude of the magnetic field through the loop is increasing. (a) If the magnetic field changes from 8.9 T to 11.5 T and the area of the loop is 8.2 m2, find the change in magnetic flux ΔΦ through the loop. in Wb (b) What is the direction of the induced magnetic field due to the change in flux? Into the page Out of the page    (c) What is the direction of the induced current through the resistor? Left to right Right to left    (d) What is the magnitude (absolute value) of the induced emf in the loop, given that the flux change in part (a) occurs over a time 0.35? in V

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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.