An electromagnet in the shape of a horseshoe has a coil with N turns. The coil carries a current I. The cross section of the horseshoe is A. Suppose that you are holding the electromagnet on top of asmall bar laying flat on a desk. The bar is made of the same material as the electromagnet core. The field between one of the horseshop poles and the bar isNIH=-2zwhere z is the air gap space between the poles of the electromagnet and the bar. Recall thatF=- VWDetermine the magnitude of the force that the electromagnet exerts on the bar as a function of the gap spacing z.O a.O b. NIF=2zOC.O d.Fedo AI0F = μ₁F = μA0- (NI) 2A1/2 (N₁) ²4z²A5 (NI) ²8z²

Given:Turns on the electromagnet, NArea of cross section of the poles, Acurrent through the…

Answered: An electromagnet in the shape of a…

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