MAYBE NOT EXACTLY THE RIGHT GROUP, but..

If I tape 2 insulated, parallel wires to the wall, x cm apart, and then
drive a sinewave into them (Vo p-p), how can I calculate the field
strength between the 2 wires?

For instance, 120KHz, 100V, 5cm apart, what is the field in V/cm between
the two wires?

Any references or information on how to calculate this would be greatly
appreciated.