Author Question: A 2.0-cm length of wire centered on the origin carries a 20-A current directed in the positive y ... (Read 126 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
A 2.0-cm length of wire centered on the origin carries a 20-A current directed in the positive y direction. Determine the magnetic field at the point x = 5.0 m on the x-axis.
 a. 1.6 nT in the negative z direction
  b. 1.6 nT in the positive z direction
  c. 2.4 nT in the negative z direction
  d. 2.4 nT in the negative z direction
  e. None of the above

Question 2

An unusual lightning strike has a vertical portion with a current of -400 A downwards. The Earth's magnetic field at that location is parallel to the ground and has a magnitude of 30 mT. In N, the force exerted by the Earth's magnetic field on the 25 m-long current is
 a. 0.
  b. 0.012 N, East.
  c. 0.012 N, West.
  d. 0.30 N, West.
  e. 300 N, East.



Jayson

  • Sr. Member
  • ****
  • Posts: 350
Answer to Question 1

A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

For a complete list of videos, visit our video library