« previous next »

Author Question: A compass needle in a magnetic field experiences A) a torque. B) a net force. C) both of these ... (Read 54 times)

bb

  • Hero Member
  • *****
  • Posts: 544
on: Jul 29, 2018
A compass needle in a magnetic field experiences
 
  A) a torque.
  B) a net force.
  C) both of these
  D) none of the above

Question 2

An iron rod becomes magnetic when
 
  A) opposite ions accumulate at each end.
  B) its atoms are aligned.
  C) the net spins of many internal electrons are aligned.
  D) its electrons stop moving and point in the same direction.


kiamars2010

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Needle Needle
Magnetic waves Magnetic waves
Needle-nose pliers are used where there is limited access to a wire or pin that needs to be ... Needle-nose pliers are used where there is limited access to a wire or pin that needs to be ...
Some Hall-effect sensors look like magnetic sensors. This Hall-effect camshaft reference sensor and ... Some Hall-effect sensors look like magnetic sensors. This Hall-effect camshaft reference sensor and ...
finding the resultant force finding the resultant force
Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011 Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011
Video: Griffith's experiments

For a complete list of videos, visit our video library