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Hi,
We know that stationary charges produce electric field and charges moving with constant velocity produces static magnetic field. But what is the electric field produced by charges moving with constant velocity???
I believe that as the position of the charges keep on changing, the...
Hi,
I've been studying about antennas and communication systems, when I came accross this statement:
"the power can actually be higher for a mismatched antenna!"
in https://www.antenna-theory.com/definitions/trp.php ...
Normally, I consider this site as good for basics.. But I'm not sure how...
If they are all in the same channel, then what factors limit the number of :
i. Simultaneous active users
ii. Total speed a user can get
Please correct me if I'm wrong, but I feel that, whatever modulation scheme is used, a large number of users would cramp the the total bandwidth available...
Hi,
I am learning about communication and certain questions popped to my head...
i.Assume the same wifi provider gives many connection in an area. Does the frequency bands used be compulsorily be different(to avoid interference)?
ii.How many active links can be there? I've this question...
Can you answer my second question?
"ii.what if we use wireless earphones. Does it mean that we'll not be able to listen to FM?(The wire is not present to act as antenna) "
Hi everyone,
I've some doubts regarding mobile antenna sizes, shapes for various purposes like FM, GSM etc.
i. Firstly, consider FM. It is common knowledge that the earphone wires act as radio receiver. But, the radio signals are transferred from mobile to earpiece along the same wire. I...
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