« previous next »

Author Question: A 500-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths ... (Read 142 times)

a0266361136

  • Hero Member
  • *****
  • Posts: 538
on: Jul 28, 2018
A 500-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field. What is the ratio of the radii of their orbits?
 a. 2.8
  b. 1.7
  c. 1.3
  d. 4.0
  e. 1.0

Question 2

A deuteron is accelerated from rest through a 10-kV potential difference and then moves perpendicularly to a uniform magnetic field with B = 1.6 T. What is the radius of the resulting circular path? (deuteron: m = 3.3  10-27 kg, q = 1.6  10-19 C)
 a. 19 mm
  b. 13 mm
  c. 20 mm
  d. 10 mm
  e. 9.0 mm


macybarnes

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Visual Field Defects Visual Field Defects
A comparison of (a) uniform, cup-shaped, normal erythrocytes A comparison of (a) uniform, cup-shaped, normal erythrocytes
Circular two-handed petrissage. Tissues are picked up between the hands as they pass each other. Circular two-handed petrissage. Tissues are picked up between the hands as they pass each other.
Move joints in hands. Apply scissoring to metacarpals and figure-8s to fingers. Move joints in hands. Apply scissoring to metacarpals and figure-8s to fingers.
Anti-GM protesters attacking a field of genetically-modified maize in southwestern France Anti-GM protesters attacking a field of genetically-modified maize in southwestern France
Video: Optic Nerve and Optic Disk Animation (Part 2 of 2)

For a complete list of videos, visit our video library