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A current I= 4.0 A flows along a straight wire on the axis of a long cylindrical tube, which has internal radius a= 2.0 cm, external radius 2a, and is made of an LIH magnetic material with relative permeability u - 5.0, as shown below. 2a Derive an expression in terms of I, u and a for the bound surface current per unit length ib on the inner surface of the tube due to its magnetization, and hence calculate the magnitude i of this surface current per unit length and specify the direction in which this current flows. Give your answers by entering a number in the expression below for the magnitude i and selecting the direction from the list of cylindrical unit vectors. |Am-1 Direction of ib: O+er O-er O +eo O-eo O +e: O-ez

A current I= 4.0 A flows along a straight wire on the axis of a long cylindrical tube, which has internal radius a= 2.0 cm, external radius 2a, and is made of an LIH magnetic material with relative permeability u - 5.0, as shown below. 2a Derive an expression in terms of I, u and a for the bound surface current per unit length ib on the inner surface of the tube due to its magnetization, and hence calculate the magnitude i of this surface current per unit length and specify the direction in which this current flows. Give your answers by entering a number in the expression below for the magnitude i and selecting the direction from the list of cylindrical unit vectors. |Am-1 Direction of ib: O+er O-er O +eo O-eo O +e: O-ez

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A current I= 4.0 A flows along a straight wire on the axis of a long cylindrical tube, which has internal radius a= 2.0 cm, external radius 2a, and is made of an LIH magnetic material with relative permeability u = 5.0, as shown below. 2a Derive an expression in terms of I, u and a for the bound surface current per unit length İh on the inner surface of the tube due to its magnetization, and hence calculate the magnitude ib of this surface current per unit length and specify the direction in which this current flows. Give your answers by entering a number in the expression below for the magnitude i and selecting the direction from the list of cylindrical unit vectors. Am- Ib = Direction of ib: +er -er +eo -eo +ez -ez 0.0
Transcribed Image Text:A current I= 4.0 A flows along a straight wire on the axis of a long cylindrical tube, which has internal radius a= 2.0 cm, external radius 2a, and is made of an LIH magnetic material with relative permeability u = 5.0, as shown below. 2a Derive an expression in terms of I, u and a for the bound surface current per unit length İh on the inner surface of the tube due to its magnetization, and hence calculate the magnitude ib of this surface current per unit length and specify the direction in which this current flows. Give your answers by entering a number in the expression below for the magnitude i and selecting the direction from the list of cylindrical unit vectors. Am- Ib = Direction of ib: +er -er +eo -eo +ez -ez 0.0
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