Turn Count

The total number of wire loops wound into a coil. Turn count is one of the most fundamental variables in coil design. Magnetic field strength scales linearly with turn count (B proportional to N*I), so doubling the turns doubles the field for the same current. However, inductance scales with the square of turn count (L proportional to N^2). Doubling the turns quadruples inductance and significantly slows current rise time. This is the core trade-off in PEMF coil design: more turns produce higher Gauss but slower rise time and lower slew rate. Turn count is verified during manufacturing using an LCR meter, since inductance provides a reliable indirect measure of N.