25.5 Figure 25-43 Questions 4 and 5. rection of the current in the metal ring in Figure 25-43 be if the magnetic field starts increasing? nd submit. For keyboard navigation, use the up/down arrow keys to select an answer clockwise if seen from the left) e lif seen from the left) B Il be no current generated in the ring, and the ring is stationary. W O Your answer

25.5 Figure 25-43 Questions 4 and 5. rection of the current in the metal ring in Figure 25-43 be if the magnetic field starts increasing? nd submit. For keyboard navigation, use the up/down arrow keys to select an answer clockwise if seen from the left) e lif seen from the left) B Il be no current generated in the ring, and the ring is stationary. W O Your answer

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 103CP: A proton of speed v=6105m/s enters a region of uniform magnetic field of B = 0.5 T at an angle of q...

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A particle’s path is bent when it passes through a region of non-zero magnetic field although its speed remains unchanged. This is very useful for “beam steering’’ in particle accelerators. Consider a proton of speed 4106m/s entering a region of uniform magnetic field 0.2 T over a 5-cm-wide region. Magnetic field is perpendicular to the velocity of the particle. By how much angle will the path of the proton be bent? (Hint: the particle comes out tangent to a circle.
A mass spectrometer is being used to separate common oxygen- 16 from the much rarer oxygen-18, taken from a sample of old glacial ice. (The relative abundance of these oxygen isotopes is related to climatic temperature at the time the ice s deposited.) The ratio of the masses of these two ions is 16 to 18, the mass of oxygen-16 is 2.661026kg, , and they are singly charged and travel at 5.00106m/s in a 1.20-T magnetic field. What is the separation between their path when they hit a target after travet5ing a semicircle?
Suppose you install a compass on the center of a cars dashboard. (a) Assuming the dashboard is made mostly of plastic, compute an order-of-magnitude estimate for the magnetic field at this location produced by the current when you switch on the cars headlights. (b) How does this estimate compare with the Earths magnetic field?
If a charged particle moves in a straight line through some region of space, can you say that the magnetic field in that region is necessarily zero?
Ten amps flow through a square loop where each side is 20 cm in length. At each comer of the loop is a 0.01-cm segment that connects the longer wires as shown. Calculate the magnitude of the magnetic field at the center of the loop.
What is the direction of the velocity of a negative charge that experiences the magnetic force shown in each of the three cases in Figure 22.51, assuming it moves perpendicular to B?
Consider the two parallel wires carrying currents in opposite directions in Figure OQ3G.9. Due to the magnetic interaction between the wires, does the lower wire experience a magnetic force that is (a) upward, (b) downward, (c) to the left, (d) to the right, or (e) into the paper?
What is the direction of the magnetic force on the current in earth of the six cases in Figure 22.53?
A cosmic ray electron moves at 7.50106m/s perpendicular to the Earth's magnetic field at an altitude where field strength is 1.00105T. What is the radius of the circular pain the electron follows?
What is the direction of the magnetic force on a positive charge that moves as shown in each of the six cases shown in Figure 22.59?
What is the direction of the magnetic field that produces the magnetic force shown on the currents in each of the three cases in Figure 22.55, assuming B is perpendicular to I?
Inside a motor, 30.0 A passes through a 250-turn circular loop that is 10.0 cm in radius. What i5 the magnetic field strength created at its center?