Current distributions in short-circuited rectangular loops

The current distribution in each arm of a short-circuited rectangular loop placed in a uniform electric field parallel to one side of the loop is evaluated. The effect of switches which bisect the loop and thus modulate the current distribution is analysed, and it is concluded that this forms a useful method, at any given frequency, of measuring magnetic fields in the far zone, irrespective of the ratio of adjacent sides of the loop. The backscattering cross-section of a resonant square short-circuited loop is also evaluated.