College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Question
Chapter 30, Problem 1P
To determine
The reasoning of Dirac for the existence of antielectrons.
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The accleration of protons in a cyclotron is shown in the figure below.
The magnetic field in a cyclotron is 1.25 T, and the maximum orbital radius of the circulating protons
is 0.4 m. The mass of a proton is 1.67-10-27 kg and the charge on a proton is 1.6-10-1⁹9 C.
Dee
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b. What is this energy in MeV?
KE at ejection in MeV =
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Ion source
O
O
O
O
Electric oscillator
MeV
MV
O
O
1
Electric field region where
kinetic energy is gained
Deflector plate
Target
a. What is the kinetic energy of the protons when they are ejected from the cyclotron?
KE at ejection =
S
Proton beam
c. Through what total potential difference (potential difference between the gaps and number of trips
through the gaps) would a proton have to be accelerated to acquire this kinetic energy?
Think about the magnitude of potential you have calculated. While designing the cyclotron, gap
potential can be made much smaller than this magnitude by making the proton pass through the gap
several times by making…
How we use the Hall effect to determine whether positive or negative charges carries the current?
As a charged particle is shot to a magnetic field B with a speed v
perpendicular to B, the particle's motion gets modified and the so
called "cyclotron radius" relates to its charge
as /9
b.
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Chapter 30 Solutions
College Physics
Ch. 30 - Prob. 1RQCh. 30 - Prob. 2RQCh. 30 - Review Question 30.3 Using what you have learned...Ch. 30 - Prob. 4RQCh. 30 - Prob. 5RQCh. 30 - Prob. 1MCQCh. 30 - Prob. 2MCQCh. 30 - Prob. 3MCQCh. 30 - Prob. 4MCQCh. 30 - Prob. 5CQ
Ch. 30 - Prob. 6CQCh. 30 - Prob. 7CQCh. 30 - Prob. 8CQCh. 30 - Prob. 9CQCh. 30 - Prob. 10CQCh. 30 - Prob. 11CQCh. 30 - 12. What are the components of the Standard...Ch. 30 - Prob. 13CQCh. 30 - Prob. 14CQCh. 30 - Prob. 1PCh. 30 - Prob. 2PCh. 30 - Prob. 3PCh. 30 - Prob. 4PCh. 30 - Prob. 5PCh. 30 - 6. Use Newtonian circular motion concepts to show...Ch. 30 - Prob. 7PCh. 30 - A particle enters a cloud chamber from above...Ch. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - Prob. 11PCh. 30 - Prob. 12PCh. 30 - Prob. 13PCh. 30 - 14. * Make an analogy between the interactions of...Ch. 30 - Why are neutrinos difficult to detect?Ch. 30 - Prob. 16PCh. 30 - Prob. 17PCh. 30 - Prob. 18PCh. 30 - Prob. 19PCh. 30 - Prob. 20PCh. 30 - Prob. 21PCh. 30 - Prob. 22PCh. 30 - Prob. 23PCh. 30 - Prob. 24PCh. 30 - Prob. 25PCh. 30 - Prob. 26PCh. 30 - * What is inflation, and what eventually happened...Ch. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - * Our bodies contain significant amounts of...Ch. 30 - 33. * What is the evidence that a large proportion...Ch. 30 - Prob. 34PCh. 30 - 35. * What is the experimental evidence for dark...Ch. 30 - Prob. 36PCh. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - * An electron and a positron are traveling...Ch. 30 - Prob. 41GPCh. 30 - Prob. 42RPPCh. 30 - Prob. 43RPPCh. 30 - Prob. 44RPP
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- The magnetic field in a cyclotron is 1.25 T, and the maximum orbital radius of the circulating protons is 0.40 m. (a) What is the kinetic energy of the protons when they are ejected from the cyclotron? (b) What Is this energy in MeV? (c) Through what potential difference would a proton have to be accelerated to acquire this kinetic energy? (d) What is the period of tire voltage source used to accelerate the piotons? (e) Repeat tire calculations for alpha-particles.arrow_forwardA mystery particle enters the region between the plates of a Thomson apparatus as shown in Figure 4.6. The deflection angle θ is measured to be 0.20 radians (downwards) for this particle when V = 2000 V, ℓ = 10.0 cm, and d = 2.00 cm. If a perpendicular magnetic field of magnitude 4.57 × 10−2 T is applied simultaneously with the electric field, the particle passes through the plates without deflection. (a) Find q/m for this particle. (b) Identify the particle. (c) Find the horizontal speed with which the particle entered the plates. (d) Must we use relativistic mechanics for this particle?arrow_forwardCheck Your Understanding What is if v=0.650c?arrow_forward
- Pl:3: this was all information that was given to me. If need j would need to look it up online.arrow_forwardOV proton 1.8 cm +270 V A proton is placed between the plates in the figure above. Explain quantitatively why, when predicting the motion of the proton between the plates, the gravitational field is not taken into consideration.arrow_forwardMr. Quark says that it is cheaper to buy regular 1.5 Volt D-size batteries to supply electricity for a house. According to him, you can buy 80 of them (80x1.5V3D120 volts), turn off your AC source from your local electric power company, and replace it with your D-size batteries. Do you agree or disagree with Mr. Quark? Explain! Properties of various discussions STE K T C on @arrow_forward
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- Can you please show the solution on how this works?arrow_forwardSuppose a cyclotron is operated at an oscillator frequency of 11.2 MHz and has a dee radius 41.9 cm. Estimate the total path length traveled by a deuteron in the cyclotron during the (entire) acceleration process. Assume that the accelerating potential between the dees is 60.4 kV. The deuteron mass is m = 3.34 × 10-27 kg.arrow_forwardTwo small sphere spaced 20.0 cm apart have equal charge. How many excesselectrons must be present on each sphere if the magnitude of the force ofrepulsion between them is 4.57x10 -21 N?arrow_forward
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