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Author Question: The magnetic force on a current-carrying wire in a magnetic field is the strongest when A) the ... (Read 99 times)

joblessjake

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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

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Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

97 nm


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