Question
In: Physics
A cordless phone transmits at 900 MHz at a power of 10 mW. Since this is...
- A cordless phone transmits at 900 MHz at a power of 10 mW. Since this is in air, the speed of the wave is essentially 3.00x108 m/s.
- What is the wavelength of the electromagnetic wave coming from the phone?
- What is the power per area 0.030 m away from the phone? Assume a spherical propagation of energy and the area of a sphere is 4pr2
- What are the maximum electric (E0) and magnetic field (B0) strengths at 0.030 m from the phone?
Solutions
Expert Solution
If E_0 and B_0 be the maximum
electic field and maximum magnetic field then for em wave,
Also Intensity I = P/A i.e.power per unit area.
genius_generous answered 2 years agoRelated Solutions
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A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater...
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A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater...
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A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater...
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900-MHz cordless telephone is greater than that of its leading
competitor. A sample of 1616 phones from the manufacturer had a
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