11.2 Magnetic Fields and Lines

Defining field strength from the force on a moving charge, the right-hand rule fixing its direction, and reading intensity from line spacing.

University Physics Volume 2, 11.2 Magnetic Fields and Lines

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4 exercises

11.2 Exercise 1

Repeat the previous problem with the magnetic field in the x-direction rather than in the z-direction. Check your answers with RHR-1.

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11.2 Exercise 2

Discuss the similarities and differences between the electrical force on a charge and the magnetic force on a charge.

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11.2 Exercise 10

(a) Aircraft sometimes acquire small static charges. Suppose a supersonic jet has a 0.500-μC charge and flies horizontally at a speed of 660. m/s over Earth’s south magnetic pole (near the north geographic pole), where the $8.00 \times 10^{−5} - \text{T}$ magnetic field points straight down into the ground. What are the direction and the magnitude of the magnetic force on the plane? (b) Discuss whether the value obtained in par…

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11.2 Exercise 12

An electron moving at $4.00 \times 10^{3} \text{m}/\text{s}$ in a 1.25-T magnetic field experiences a magnetic force of $1.40 \times 10^{−16} \text{N} .$ What angle does the velocity of the electron make with the magnetic field? There are two answers.

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