« previous next »

Author Question: The magnetic force on a current-carrying wire in a magnetic field is the strongest when A) the ... (Read 118 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
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
« previous next »
 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

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

A Snapshot of the Sun’s Global Magnetic Field A Snapshot of the Sun’s Global Magnetic Field
Preparation of sterile field 2 Preparation of sterile field 2
Concentric double-pipe heat exchanger for co-current flow Concentric double-pipe heat exchanger for co-current flow
Current and future trends and impacts (IPCC) Current and future trends and impacts (IPCC)
Client’s view with visual field loss Client’s view with visual field loss
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: Primary and secondary response to infection

For a complete list of videos, visit our video library