An ?=45.0 cm wire is moving to the right at a speed of ?=7.90 m/s across two parallel wire rails that are connected on the left side, as shown in the figure. The whole apparatus is immersed in a uniform magnetic field that has a magnitude of ?=0.910 T and is directed into the screen. What is the emf  induced in the wire?

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A: Answer is given below:  Explanation:Question 1:Answer:

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Q: A circular coil of wire with 450 turns and a radius of 8.5 cm is placed horizontally on a table. A…

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Q: I got 0.1981686061 V

A: 0.40 VExplanation:

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A: Given:- Find A) Find emf induced.

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A:

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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.