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On 4/21/97 Bob Sciamanda wrote:
. . .
E(r) = {Io*A*w^2*sin(theta)}/4*Pi*epsilon*c^3*r
. . .
Are you sure it is not cos(theta) which would mean maximum E along the
axis? . . .
Don't under-estimate the sensitivity of (even simple) radio receivers.
The specifications of my (cheap Radio Shack) stereo claim a sensitivity
of 900 microvolts/meter for the AM tuner.
Do you mean that E<0.9 mV/m would be below the noise level? No matter how
sensitive a detector may be it is very hard to recognize a signal which is
below the noise level. By the way, my cheap AM radio was tuned on a station
near 550 KHz while the natural f (for L=0.0028 mH and 3000 pF) is 1.74 MHz.
Tunning the receiver on a station closer to 1.74 MHz would be more logical
but I did not think about this.
Ludwik Kowalski