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Author Question: In a certain region of space there is a uniform magnetic field pointing in the positive z direction ... (Read 85 times)

V@ndy87

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on: Jul 28, 2018
In a certain region of space there is a uniform magnetic field pointing in the positive z direction (+z). In what direction should a negative point charge move to experience a force in the positive x direction (+x)?
  1.in the positive z direction (+z)
  2.in the negative z direction (z)
  3.in the positive x direction (+x)
  4.in the negative x direction (x)
  5.in the positive y direction (+y)
  6.in the negative y direction (y)
  7.It can move in any direction.
  8.It is impossible for the force to be in the +x direction when the magnetic field is in the +z direction.

Question 2

Consider the following circuits. The batteries and capacitors are identical, and the switches have been closed for a very long time.
 
   
   
 
   
   At t = 0, both switches are opened. Which
   pair of resistors dissipates more total energy?


  1.The resistors in A dissipate more energy.
  2.The resistors in B dissipate more energy.
  3.Both pairs of resistors dissipate the same amount of energy.
  4.The amounts of energy dissipated cannot be compared.


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Brenm

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Reply #1 on: Jul 28, 2018
Answer to Question 1

6

Answer to Question 2

3


V@ndy87

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Reply 2 on: Jul 28, 2018
Excellent

yeungji

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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