This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Metal detectors that locate metal beneath sand on a beach are activated by A) electric fields. ... (Read 85 times)

Engineer

  • Hero Member
  • *****
  • Posts: 527
on: Jul 29, 2018
Metal detectors that locate metal beneath sand on a beach are activated by
 
  A) electric fields.
  B) magnetic fields.
  C) electromagnetic induction.
  D) alternating current.

Question 2

When a bar magnet is thrust at the same speed into a coil having twice the number of loops, the induced voltage is
 
  A) half.
  B) the same, no different.
  C) twice as much.
  D) four times as much.
  E) none of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: C


Engineer

  • Member
  • Posts: 527
Reply 2 on: Jul 29, 2018
:D TYSM

amandalm

  • Member
  • Posts: 306
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Transduction of mechanical vibrations to electric signals in the organ of Corti. Transduction of mechanical vibrations to electric signals in the organ of Corti.
Electric Flux Electric Flux
Ivanpah Solar Electric Generating System Ivanpah Solar Electric Generating System
Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto
Ford uses an inertia switch to turn off the electric fuel pump in case of an accident. Ford uses an inertia switch to turn off the electric fuel pump in case of an accident.
A cutaway view of a typical two-stage turbine electric fuel pump. A cutaway view of a typical two-stage turbine electric fuel pump.
Video: Blood Test Basics

For a complete list of videos, visit our video library