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proof charge

noun

Definitions

  1. A charge of powder and ball, greater than the service charge, fired in an arm, as a gun…

    A charge of powder and ball, greater than the service charge, fired in an arm, as a gun or cannon, to test its strength.

    • Amd. the official "Extracts of Artillery Proceedings" tell us, 4:3:72, tha the Superintendent, Royal Gun Factories, "proposes tha the proof charge for the 12-inch gun of 35-tons shall be 115 lbs.

  2. A small charge used to test or measure the electric field created by other charges.

    • This means that the proof charge will be repelled by the electric field.Moreover, since the proof charge should not interfere with the measurements and assuming that its starting point is infinity (¥), then VB = 0.

The neighborhood

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sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA