Calculate the rms magnetic field bt

Reference no: EM13812196

Cora lies in a tanning bed getting a tan. Assume that AS = 0.79 m2 of her skin is exposed to the light from the ultraviolet (UV) lamps.

The UV lamps produce light with an average energy density of uT = 5 x 10-6 J / m3. She lies in the bed for tT = 30 minutes.

Randomized Variables

AS = 0.79 m2

UT = 5 x 10-6 J / m3

tT = 30 minutes

Part (a) Calculate the average intensity ST in W / m2 of the UV light.

Part (b) Assume that Cora's skin absorbs 100% of the energy of the UV light. Calculate how much energy UT in J her skin absorbs during the time she lies in the bed.

Part (c) Calculate the rms electric field ET in N/C of the UV light.

Part (d) Calculate the rms magnetic field BT in T of the UV light.

An antenna with power P = 1.4 x 103 W is radiating spherical electromagnetic waves. Consider a place which is d = 190 m away from the antenna.

Randomized Variables

P = 1.4 x 103 W

d = 190 m

1. Express I in terms of the electric field magnitude Emax, and the speed of light c.

2. Find Emax2 in terms of P, d, and c.

3. Solve for the numerical value of Emax in V/m.

Reference no: EM13812196

Questions Cloud

Discuss factors affecting operational performance : Be sure to discuss factors affecting operational performance, assessment, and improvement relative to the achievement of each of the respective health care organizations' missions and strategic goals.

Describe working principle of scanning tunneling microscope : Describe the working principle of a Scanning Tunneling Microscope (STM) and its major components (no more than 200 words). Which variable does the STM attempt to keep constant as it scans?

Metrics of human development : Metrics of Human Development

Write a review about how to fund a non-profit book festival : Write a review about How to Fund a Non-Profit Book Festival.

Calculate the rms magnetic field bt : Calculate the average intensity ST in W / m2 of the UV light - Calculate the rms magnetic field BT in T of the UV light.

Legal aspects of diversity : LEGAL ASPECTS OF DIVERSITY

Beck manufacturing case study : Read the "Beck Manufacturing" case study. In a three- to four-page paper, address the following:

Discuss qualities that make this particular work noteworthy : Discuss the qualities that make this particular work noteworthy, and/or discuss its negative aspects. Are there specific scenes, characters, or observations that go against particular stereotypes?

General trade-offs that are involved in waiting line : What are the general trade-offs that are involved in waiting line decisions? Who needs to be involved in assessing the cost of customers waiting for service? How has technology had an impact on analyzing waiting line systems? Visit a restaurant an..

User Account

All Pages