This topic contains a solution. Click here to go to the answer

Author Question: When a magnet is moved to and fro in a wire coil, voltage is induced. If the coil has twice as many ... (Read 129 times)

pragya sharda

  • Hero Member
  • *****
  • Posts: 566
When a magnet is moved to and fro in a wire coil, voltage is induced. If the coil has twice as many loops, the voltage induced is
 
  A) half.
  B) the same.
  C) twice.
  D) four times as much.
  E) none of the above

Question 2

The metal detectors that people walk through at airports operate via
 
  A) Ohm's law.
  B) Faraday's law.
  C) Coulomb's law.
  D) Newton's laws.
  E) civil laws.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AISCAMPING

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B





 

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

For a complete list of videos, visit our video library