What is the inductance of three 10-millihenry inductors connected in parallel?

Erklärung

Inductors in parallel combine like resistors in parallel, so three equal 10-millihenry inductors give 10 / 3 = 3.3 millihenries. The units matter: the answer stays in millihenries, so 3.3 henries is off by a factor of a thousand.