Can any intangible thing manipulate electrical flow? Answered

Like is there anything non-material, like a magnetic field which when brought near a wire or by any other way stops or allows the electric flow through it? And I am not talking about a changing magnetic field producing a current in the wire.

Tags:Electronics Switches science magnetic fields

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iceng

7 years ago

A MOSFET gate though electrically isolated
can actually pinch off current flow through the transistor
by its physical nearness to the internal current flow channel.

A