Here is the info given: For a microwave unit, the power output of microwaves is

Question

Here is the info given: For a microwave unit, the power output of microwaves is 1.00 kW. It projects onto an area of 0.12 m^2.

PLEASE SHOW ME WHAT EQUATION YOU USED

1. Calculate the avergage intensity of this output in kilo-watts per meter squared.

I got 8.33...is this correct

2. Calculate the field amplitude in kilo-volts per meter

3. Calculate the magnetic field amplitude in micro Telsa

4. During normal beating, the heart creates a maximum 4.00 mV potntial across 0.300 m of a persons chest, creating 1.00 Hz electromagnetic wave. What is the maximum electric field strength created in milli-volts per meter?

5. What is the wavelength of the electromagnetic wave?

6. If you wish to detects details regarding the size of the atom, which is about 1 x 10^-10m, it must have a wavelength this size. What would be the corresponding frequency and what type of electromagnetic radiation would this be?

Explanation / Answer

2. I = Erms^2/u0c Erms^2 = 8.33 *1000* 4pi *10^-7 *3*10^8

Erms = 1.771 K v/m

3. Brms = E/C   = 0.059 uT

4. E = 4/0.3   = 13.3 mV

5. V = Lf
L = 3*10^8/1   =   3 *10^8 m

6. f = 3*10^8/10^-10   = 3 *10^18 Hz     this corresponds X-rays

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