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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900-MHz cordless telephone is greater than that of its leading
competitor. A sample of 18 phones from the manufacturer had a mean
range of 1250 feet with a standard deviation of 31 feet. A sample
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A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater...
A manufacturer claims that the calling range (in feet) of its
900-MHz cordless telephone is greater than that of its leading
competitor. A sample of 1818 phones from the manufacturer had a
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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
mean range of 12201220 feet with a standard deviation of 4141 feet.
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range of 12001200 feet with a standard deviation of 2525 feet. Do
the results support the manufacturer's claim? Let μ1μ1 be the true
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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
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range of 1250 feet with a standard deviation of 23 feet. A sample
of 6 similar phones from its competitor had a mean range of 1200
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the manufacturer's claim? Let μ1 be the true mean range of...
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