The term describing opposition to electron flow in a metallic circuit is:

Within the balloon, which is sufficiently translucent, are placed several incandescent lamps in metallic circuit, with a source of electricity on the ground.

These impulses are transmitted over a metallic circuit (overhead wires or underground cables) to a distant location.

It made use of a sheet of plastic, on which the keys were printed, overlaying a metallic circuit that registered when a key was pressed.

This gradient is low at points far away from the earth return connections, but increases near the ground rods where the metallic circuit enters the earth.

One wire circuits were typically called earth return circuits, or sometimes 'non metallic' and two wire were also referred to as 'metallic circuits'.

No one had been able to figure out how the duplicating effect was generated, but the engineers had found it was transmitted to the pans over a simple metallic circuit.

Bell 43401 Bell publication which defines requirements for transmission over point-to-point, metallic circuits that have DC continuity (or no break in the wiring from end to end).

The patent is about as broad as a patent can be, being regardless of specific devices, and laying a powerful grasp on the fundamental idea of multiple distribution from a number of generators throughout a metallic circuit.

In arguing against the classification of the product in issue in heading No. 85.17, the representative submitted that, contrary to the Explanatory Notes to heading No. 85.17, the product in issue does not transmit information over a metallic circuit.

Another of his early transmitters was a rough model of the human ear, carved in oak, and provided with a drum which actuated a bent and pivoted lever of platinum, making it open and close a springy contact of platinum foil in the metallic circuit of the current.