The Outer Limits: The Man with the Power (TV)

Milquetoast college teacher Harold lacks tenure, and the ability to stand up to anyone, especially his shrewish wife. But after a brain operation so he can aid in a space project to mine asteroids, a giant electrical vortex appears when he's angry at someone, unleashing the earth's Magnetic Fields against the offender. Harold is unaware of the new power of his Id, while the rocket scientists are thrilled at compliant Harold's conscious ability to focus massive energy.