This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The magnetic field of a long, straight wire has a value B0 at a distance of r0 when the current is ... (Read 92 times)

big1devin

  • Hero Member
  • *****
  • Posts: 583
on: Jul 28, 2018
The magnetic field of a long, straight wire has a value B0 at a distance of r0 when the current is I0. At a distance of 3.00 r0. what current is necessary to produce a field having the same strength B0 at this position?
  1. 1.73 I0
  2. 3.00 I0
  3. 9.00 I0
  4. More information is needed.

Question 2

In a mass spectrometer where ions are fired at a given speed perpendicular to the magnetic field, what would be the ratio r20/r22 of the radii of the paths for singly-ionized neon atoms of masses 20 u and 22 u?
  1.100/121
  2.10/11
  3.11/10
  4.121/100


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ryhom

  • Sr. Member
  • ****
  • Posts: 366
Reply #1 on: Jul 28, 2018
Answer to Question 1

2

Answer to Question 2

2


big1devin

  • Hero Member
  • *****
  • Posts: 583
Reply #2 on: Jul 28, 2018
TY


ryhom

  • Sr. Member
  • ****
  • Posts: 366
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Field Trippers Field Trippers
Current Resistance and Voltage Current Resistance and Voltage
The Role of the Hippocampus and Cerebral Cortex in Long-Term Memory Storage The Role of the Hippocampus and Cerebral Cortex in Long-Term Memory Storage
In American Progress (1872), John Gast depicts a feminized (and eroticized) America moving westward, In American Progress (1872), John Gast depicts a feminized (and eroticized) America moving westward,
When young infants hold objects for a long period of time they eventually become habituated to them. When young infants hold objects for a long period of time they eventually become habituated to them.
Hormones acting through the brain help regulate metabolism and short- and long-term appetite. Hormones acting through the brain help regulate metabolism and short- and long-term appetite.
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

For a complete list of videos, visit our video library