« previous next »

Author Question: When the number of turns in a solenoid and its length are both doubled, the ratio of the magnitude ... (Read 44 times)

lak

  • Hero Member
  • *****
  • Posts: 546
on: Jul 28, 2018
When the number of turns in a solenoid and its length are both doubled, the ratio of the magnitude of the new magnetic field inside to the magnitude of the original magnetic field inside is:
 a. 0.25
  b. 0.50
  c. 1
  d. 2
  e. 4

Question 2

A long solenoid (1 000 turns/m) carries a current of 25 mA and has an inside radius of 2.0 cm. A long wire which is parallel to and 4.0 cm from the axis of the solenoid carries a current of 6.0 A. What is the magnitude of the magnetic field at a point on the axis of the solenoid?
 a. 51 mT
  b. 61 mT
  c. 43 mT
  d. 81 mT
  e. 1.4 mT


duke02

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

lak

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 28, 2018
Thank you!


duke02

  • Sr. Member
  • ****
  • Posts: 312
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Avogadro's number calculation Avogadro's number calculation
A typical variable cam timing control valve. The solenoid is controlled by the engine computer and ... A typical variable cam timing control valve. The solenoid is controlled by the engine computer and ...
Calculate the magnitude and direction of the resultant for Calculate the magnitude and direction of the resultant for
The charge for telephone calls T is partly constant and partly varies with the number N of ... The charge for telephone calls T is partly constant and partly varies with the number N of ...
Directions: Fill in the correct number or word(s). Order: Lantus U-100 insulin 68 units subcut ... Directions: Fill in the correct number or word(s). Order: Lantus U-100 insulin 68 units subcut ...
Separation of variable number tandem repeat (VNTR) alleles after PCR amplification Separation of variable number tandem repeat (VNTR) alleles after PCR amplification
Video: Lipid catabolism - lipolysis and beta oxidation and oxidation of fatty acids

For a complete list of videos, visit our video library