Author Question: As a coil is removed from a magnetic field an emf is induced in the coil causing a current to flow ... (Read 53 times)

eruditmonkey@yahoo.com

  • Hero Member
  • *****
  • Posts: 546
As a coil is removed from a magnetic field an emf is induced in the coil causing a current to flow within the coil. This current interacts with the magnetic field producing a force which
 
  A)
 
  acts at right angles to the coil's motion.
  B)
 
  acts in the direction of the coil's motion.
  C)
 
  causes the coil to tend to flip over.
  D)
 
  acts in the direction opposite to the coil's motion.

Question 2

A 2.0-F capacitor is charged to 12 V and then discharged through a 4.0  106  resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?
 
  A)
 
  4.5 s
  B)
 
  8.0 s
  C)
 
  11 s
  D)
 
  22 s
  E)
 
  24 s


AngeliqueG

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

D

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

For a complete list of videos, visit our video library