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

Author Question: When current reverses direction in a wire, the surrounding magnetic field A) also reverses ... (Read 115 times)

lbcchick

  • Hero Member
  • *****
  • Posts: 550
on: Jul 29, 2018
When current reverses direction in a wire, the surrounding magnetic field
 
  A) also reverses direction.
  B) becomes momentarily stronger.
  C) contracts.
  D) expands.

Question 2

Magnetic field lines about a current-carrying wire
 
  A) extend radially from the wire.
  B) circle the wire in closed loops.
  C) both of these
  D) neither of these


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zacnyjessica

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


lbcchick

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


zacnyjessica

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Past and current ranges of the grizzly bear. Past and current ranges of the grizzly bear.
A typical pedestal grinder with a wire wheel on the left side and a stone wheel on the right side. ... A typical pedestal grinder with a wire wheel on the left side and a stone wheel on the right side. ...
Hall-effect switches use metallic shutters to shunt magnetic lines of force away from a silicon ... Hall-effect switches use metallic shutters to shunt magnetic lines of force away from a silicon ...
If the pump is not running, check the wiring and current flow before going through the process of ... If the pump is not running, check the wiring and current flow before going through the process of ...
Fascial sheaths surrounding and linking the muscles of the back of the body. Fascial sheaths surrounding and linking the muscles of the back of the body.
A silver wire with a resistivity of 1.59E-8 Ωm has a radius of 14.1 mm. A silver wire with a resistivity of 1.59E-8 Ωm has a radius of 14.1 mm.
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library