clicker_Chapter_27

clicker_Chapter_27 - Chapter 27 Sources of the Magnetic...

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Chapter 27: Sources of the Magnetic Field Section 27-1: The Magnetic Field of Moving Point Charges

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A point charge is moving with constant speed 2 ×10 7 m/s along the x axis. It creates a magnetic field as it travels through a region where there is no external magnetic field. At t = 0, the charge is at x = 0 m and the magnitude of the magnetic field at x = 4 m is B 0 . The magnitude of the magnetic field at x = 4m when t = 0.1 μ s is A. B 0 /2 B. B 0 C. B 0 /4 D. 2 B 0 E. 4 B 0
A point charge is moving with constant speed 2 ×10 7 m/s along the x axis. It creates a magnetic field as it travels through a region where there is no external magnetic field. At t = 0, the charge is at x = 0 m and the magnitude of the magnetic field at x = 4 m is B 0 . The magnitude of the magnetic field at x = 4m when t = 0.1 μ s is A. B 0 /2 B. B 0 C. B 0 /4 D. 2 B 0 A. 4 B 0

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The top diagram shows the velocity of a positively charged particle. Which arrow best represents the direction of the magnetic field due to the moving charge at r ?
The top diagram shows the velocity of a positively charged particle. Which arrow best represents the direction of the magnetic field due to the moving charge at r ?

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The magnitude of the magnetic field due to the presence of a charged body A. varies directly with the speed of the body. B. varies directly with the charge carried by the body. C. varies inversely with the square of the distance between the charged body and the field point. D. depends on the magnetic properties of the space between the charged body and the field point. E. is described by all of these.
The magnitude of the magnetic field due to the presence of a charged body A. varies directly with the speed of the body. B. varies directly with the charge carried by the body. C. varies inversely with the square of the distance between the charged body and the field point. D. depends on the magnetic properties of the space between the charged body and the field point. A. is described by all of these.

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A positively charged body is moving in the negative z direction as shown. What is the direction of the magnetic field due to the motion of this charged body at point P?
A positively charged body is moving in the negative z direction as shown. What is the direction of the magnetic field due to the motion of this charged body at point P?

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A positively charged body is moving in the positive x direction as shown. The direction of the magnetic field at the origin due to the motion of this charged body is A. 1 B. 2 C. 3 D. 4 E. None of these is correct, as this charged body does not create a magnetic field along the axis of its motion.
A positively charged body is moving in the positive x direction as shown. The direction of the magnetic field at the origin due to the motion of this charged body is A. 1 B. 2 C. 3 D. 4 A. None of these is correct, as this charged body does not create a magnetic field along the axis of its motion.

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At the instant the positively charged body is at the origin, the magnetic field at point P due to
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This note was uploaded on 01/11/2011 for the course PHYS 1302 taught by Professor Mueller during the Fall '09 term at Carnegie Mellon.

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clicker_Chapter_27 - Chapter 27 Sources of the Magnetic...

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