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

Author Question: A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned ... (Read 113 times)

brutforce

  • Hero Member
  • *****
  • Posts: 540
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of 0.40 W, what is the magnitude of the induced current?
 a. 0.70 A
  b. 0.60 A
  c. 0.50 A
  d. 0.80 A
  e. 0.20 A

Question 2

A coil is wrapped with 300 turns of wire on the perimeter of a circular frame (radius = 8.0 cm). Each turn has the same area, equal to that of the frame. A uniform magnetic field is turned on perpendicular to the plane of the coil. This field changes at a constant rate from 20 to 80 mT in a time of 20 ms. What is the magnitude of the induced emf in the coil at the instant the magnetic field has a magnitude of 50 mT?
 a. 24 V
  b. 18 V
  c. 15 V
  d. 10 V
  e. 30 V



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultana.d

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

C

Answer to Question 2

B



brutforce

  • Hero Member
  • *****
  • Posts: 540
Both answers were spot on, thank you once again



sultana.d

  • Sr. Member
  • ****
  • Posts: 320

 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

For a complete list of videos, visit our video library