Calculate the magnetic field at the center of a circular current loop of area 0.200 m2 divided by the magnetic field at the center of a square current loop of the same inside area for the same current I value.

A) 1.00 B) 1.02 C) 0.246 D) 0.985 E) 0.785 A) 1.00 B) 1.02 C) 0.246 D) 0.985 E) 0.785

Exam 27: Sources of the Magnetic Field

Two straight rods 55 cm long and 1.4 mm apart in a current balance carry current I,each in opposite directions.If a mass of 1.3 g when placed on the upper rod balances the magnetic force of repulsion between the rods,then calculate the current I.

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Question 81

At great axial distances x from a current-carrying loop the magnetic field varies as

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Question 82

Calculate the magnetic field at the center of a circular current loop of area 0.200 m² divided by the magnetic field at the center of a square current loop of the same inside area for the same current I value.

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Question 83

Use the following figure to answer the next problem: $Use the following figure to answer the next problem: -The tightly wound toroid shown consists of 100 turns of wire,each carrying a current I = 3 A.If a = 12 cm and b = 15 cm,the magnetic field at r = 10 cm,due to the current in this toroid,is (µ0 = 4 \pi \times 10-7 N/A2)$ -The tightly wound toroid shown consists of 100 turns of wire,each carrying a current I = 3 A.If a = 12 cm and b = 15 cm,the magnetic field at r = 10 cm,due to the current in this toroid,is (µ₀ = 4 $\pi$ $\times$ 10^-7 N/A²)

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Question 84

A toroid has 200 turns of wire with a current of 3 A passing through the wire.The inner radius of the toroid is 3 cm and the outer radius is 5 cm.Calculate the magnetic field strength at a radius of 2 cm.

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Question 85

A wire of radius 0.35 cm carries a current of 75 A that is uniformly distributed over its cross-sectional area.The magnetic field at a distance of 5.0 cm from the center of the wire is approximately

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Question 86

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Exam 27: Sources of the Magnetic Field

Two straight rods 55 cm long and 1.4 mm apart in a current balance carry current I,each in opposite directions.If a mass of 1.3 g when placed on the upper rod balances the magnetic force of repulsion between the rods,then calculate the current I.

At great axial distances x from a current-carrying loop the magnetic field varies as

Calculate the magnetic field at the center of a circular current loop of area 0.200 m2 divided by the magnetic field at the center of a square current loop of the same inside area for the same current I value.

Use the following figure to answer the next problem: -The tightly wound toroid shown consists of 100 turns of wire,each carrying a current I = 3 A.If a = 12 cm and b = 15 cm,the magnetic field at r = 10 cm,due to the current in this toroid,is (µ0 = 4 π\piπ ×\times× 10-7 N/A2)

A toroid has 200 turns of wire with a current of 3 A passing through the wire.The inner radius of the toroid is 3 cm and the outer radius is 5 cm.Calculate the magnetic field strength at a radius of 2 cm.

A wire of radius 0.35 cm carries a current of 75 A that is uniformly distributed over its cross-sectional area.The magnetic field at a distance of 5.0 cm from the center of the wire is approximately

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Calculate the magnetic field at the center of a circular current loop of area 0.200 m² divided by the magnetic field at the center of a square current loop of the same inside area for the same current I value.