Definitions for key, bridge

This page provides all possible meanings and translations of the word key, bridge

The Standard Electrical Dictionary

  1. Key, Bridge

    A key for use with a Wheatstone Bridge, q.v. It is desirable to first send a current through the four arms of the bridge in using it for testing resistances and then through the galvanometer, because it takes a definite time for the current to reach its full strength. This is especially the case if the element being measured has high static capacity, as a long ocean cable. If the galvanometer connections were completed simultaneously with the bridge connections a momentary swing would be produced even if the arms bore the proper relation to each other. This would cause delay in the testing. A bridge key avoids this by first connecting the battery circuit through the arms of the bridge, and then as it is still further depressed the galvanometer circuit is completed.

Images & Illustrations of key, bridge


Find a translation for the key, bridge definition in other languages:

Select another language:

Discuss these key, bridge definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"key, bridge." STANDS4 LLC, 2015. Web. 27 Nov. 2015. <, bridge>.

Are we missing a good definition for key, bridge? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for key, bridge:

Thanks for your vote! We truly appreciate your support.