Part 5/9:
This system's benefits extend beyond effective cooling. By regulating temperature precisely, Tesla reduces reliance on expensive rare-earth magnets and minimizes the formation of eddy currents—tiny electrical whirlpools caused by fluctuating magnetic fields. Eddy currents generate unwanted heat and waste energy, reducing efficiency. Tesla's approach keeps the motor casing warmer, increasing electrical resistance and thus diminishing eddy currents, which contributes to improved overall efficiency.