Author Question: The magnetic force on a current-carrying wire in a magnetic field is the strongest when A) the ... (Read 43 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
The magnetic force on a current-carrying wire in a magnetic field is the strongest when
 
  A) the current is in the direction of the magnetic field lines.
  B) the current is in the direction opposite to the magnetic field lines.
  C) the current is at a 180 angle with respect to the magnetic field lines.
  D) the current is perpendicular to the magnetic field lines.
  E) the current is at a 0 angle with respect to the magnetic field lines.

Question 2

What is the wavelength of a photon having the same momentum as an electron that is traveling at 7.5 km/s?
 
  (h = 6.626  10-34 J  s, melectron = 9.11  10-31 kg)



Dunkey

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

D

Answer to Question 2

97 nm



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

For a complete list of videos, visit our video library