• piecat@lemmy.world
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    6 months ago
    1. as the distance increases the capacitance reduces. But C=Q/V doesn’t mean you’re not inducing any potential into the antenna… You’re adding to the load… C=ε*A/d is the equation that says capacitance will decrease with distance, but that isn’t going to induce any voltage in this case.

    2. yes this is what I’m saying.

    3. in the very near field, conductive tissue, ie a body, will have Eddy currents. Your body has an ε term as well as σ. You can definitely load an antenna. The R term will dominate but there will be some effect on inductance.