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

Author Question: Assume the amplitude of the electric field in a plane electromagnetic wave is E1 and the amplitude ... (Read 94 times)

jerry coleman

  • Hero Member
  • *****
  • Posts: 570
on: Jul 28, 2018
Assume the amplitude of the electric field in a plane electromagnetic wave is E1 and the amplitude of the magnetic field is B1. The source of the wave is then adjusted so that the amplitude of the electric field doubles to become 2E1. What happens to the intensity of the wave?
  1.It becomes four times larger.
  2.It becomes two times larger.
  3.It can stay constant.
  4.It becomes one-half as large.
  5.It becomes one-fourth as large.

Question 2

A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions. As the wave moves, the amplitude of its electric field:
  1.increases.
  2.decreases.
  3.stays constant.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xthemafja

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 28, 2018
Answer to Question 1

1

Answer to Question 2

2


jerry coleman

  • Hero Member
  • *****
  • Posts: 570
Reply #2 on: Jul 28, 2018
TY


xthemafja

  • Sr. Member
  • ****
  • Posts: 348
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Ivanpah Solar Electric Generating System Ivanpah Solar Electric Generating System
Wave Travel Wave Travel
Light Waves in the Electromagnetic Spectrum Light Waves in the Electromagnetic Spectrum
The electromagnetic spectrum. Ionizing radiation is only a small portion of the electromagnetic ... The electromagnetic spectrum. Ionizing radiation is only a small portion of the electromagnetic ...
The Electromagnetic Spectrum The Electromagnetic Spectrum
Physics homework related to electric fields Physics homework related to electric fields
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

For a complete list of videos, visit our video library