High School

An oscillating dipole antenna 1.55 m long with a maximum 39.5 mV potential creates a 500 Hz electromagnetic wave. What is the maximum electric field strength created?

Answer :

The maximum electric field strength created by an oscillating dipole antenna with a given length and potential difference can be calculated by dividing the potential by the length, yielding an electric field strength of 25.5 mV/m.

The maximum electric field strength (E_max) created by an oscillating dipole antenna can be found using the potential difference (V) and the length of the antenna (l).

The formula to calculate this is [tex]E_max = V / l.[/tex] In this case, the maximum potential is 39.5 mV (or 0.0395 V), and the length of the antenna is 1.55 meters.

Therefore, the maximum electric field strength created by the dipole antenna is 0.0395 V / 1.55 m which equals approximately 0.0255 V/m or 25.5 mV/m.