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 133 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?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

For a complete list of videos, visit our video library