A metal rod is forced to move with constant velocity = 65.0 cm/s along two parallel metal rails, connected with a strip of metal at one end, as shown in the figure. A magnetic field B = 0.25 T points out of the page. The rails are seperated by 35.0 cm. What emf is generated?  If the rod has a resistance of 18.0 Ω and the rails and connectors have negligible resistance, what is the current in the rod?  At what rate is energy being tranferred to thermal energy?

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A: 0.40 VExplanation:

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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.