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

Author Question: A circular coil lies flat on a horizontal surface. A bar magnet is held above the center of the coil ... (Read 112 times)

stephzh

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
A circular coil lies flat on a horizontal surface. A bar magnet is held above the center of the coil with its north pole pointing down.
 
  If the magnet is dropped from this position what is the direction of the induced current in the coil, as viewed from above? A) counterclockwise
  B) clockwise
  C) An emf but no current is induced in the coil.
  D) There is no current in the coil.

Question 2

What is the frequency of 20-mm microwaves? (c = 3.0  108 m/s)
 
  A) 100 MHz
  B) 400 MHz
  C) 15 GHz
  D) 73 GHz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nhea

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


stephzh

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 29, 2018
Thank you!


nhea

  • Sr. Member
  • ****
  • Posts: 305
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

The Sun is the star at the center of the Solar System. The Sun is the star at the center of the Solar System.
The Venusian Surface The Venusian Surface
To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad
Operation of a typical pulse generator (pickup coil). At the bottom is a line drawing of a typical ... Operation of a typical pulse generator (pickup coil). At the bottom is a line drawing of a typical ...
Apply petrissage to center of abdomen. Place hands palm over palm in center of the abdomen. Create ... Apply petrissage to center of abdomen. Place hands palm over palm in center of the abdomen. Create ...
Circular friction with knuckles to various spots on the foot bottom. Concentrate on places with ... Circular friction with knuckles to various spots on the foot bottom. Concentrate on places with ...
Video: The pH scale - Strong acids and Weak acids

For a complete list of videos, visit our video library