Answered: Choose the correct answers. 1. What…

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter30: Faraday's Law

Section: Chapter Questions

Problem 50CP

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Question

Choose the correct answers.

1. What is the cyclotrone frequency of an electron in a magnetic field of 2 T?

A. 14 GHz

B. 28 GHz

C. 42 GHz

D. 56 GHz

2. For a proton to pass undeflected in a region where the electric field is 0.25 N/C and a magnetic field of 2.0 x 10-5 T, what must be its speed?

A. 125 m/s

B. 1,250 m/s

C. 12,500 m/s

D. 125,000 m/s

3. A charged particle q, traveling through a magnetic field, has the force F acting upon it. Another particle with charge equal to -2q will have the same force acting upon it if:

A. it moves at half the velocity in the opposite direction.

B. it moves at twice the velocity in the opposite direction.

C. it moves at half the velocity in the same direction.

D. it moves at twice the velocity in the same direction.

4. A proton moves through a uniform magnetic field of magnitude 2.5 x 10-3 T at a speed of 3.50 x 104 m/s. What is the magnitude of a maximum magnetic force it can experience?

A. 1.401 x 10-17 N

B. 1.401 x 10-15 N

C. 1.401 x 1015 N

D. 1.401 x 1017 N

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