Browse Definitions:
Definition

coulomb per meter cubed

The coulomb per meter cubed (symbolized C · m -3 ) is the unit of electric charge density. Reduced to base units in the International System of Units ( SI ), 1 C · m -3 is equivalent to one ampere second per meter cubed (1 A · s · m -3 ).

Suppose there is a globe having volume of one meter cubed, and it is supplied with one coulomb of charge with respect to electrical ground. Then the average charge density in the globe is 1 C · m -3 . The local charge density might not be uniform throughout the globe, but might instead be concentrated near the surface, especially if the charge is comprised of an excess of electron s (that is, a negative charge). This is because particles of like charge tend to repel each other. In that case, the local charge density near the center of the globe will be less than 1 C · m -3 , and the local charge density near the surface will be greater than 1 C · m -3 .

If the charge on the globe is doubled, then the average charge density will become 2 C · m -3 . If the diameter of the globe is cut in half while the charge remains the same, then the average charge density will increase by a factor of 8, because the volume will become 1/8 (1/2 3 ) as great as before.

Also see electric field , coulomb , meter cubed , coulomb per meter squared , and International System of Units ( SI ).

This was last updated in September 2005

Continue Reading About coulomb per meter cubed

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

SearchSecurity

  • copyright

    Copyright is a legal term describing ownership of control of the rights to the use and distribution of certain works of creative ...

  • keylogger (keystroke logger or system monitor)

    A keylogger, sometimes called a keystroke logger or system monitor, is a type of surveillance technology used to monitor and ...

  • password

    A password is an unspaced sequence of characters used to determine that a computer user requesting access to a computer system is...

SearchHealthIT

SearchDisasterRecovery

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

  • mass notification system (MNS)

    A mass notification system is a platform that sends one-way messages to inform employees and the public of an emergency.

SearchStorage

  • CompactFlash card (CF card)

    A CompactFlash card (CF card) is a memory card format developed by SanDisk in 1994 that uses flash memory technology to store ...

  • email archiving

    Email archiving (also spelled e-mail archiving) is a systematic approach to saving and protecting the data contained in email ...

  • RAID (redundant array of independent disks)

    RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks to ...

SearchSolidStateStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification written for internally mounted storage...

  • NVMe (non-volatile memory express)

    NVMe (non-volatile memory express) is a host controller interface and storage protocol to enable a solid-state drive to use the ...

  • SSD RAID (solid-state drive RAID)

    SSD RAID (solid-state drive RAID) is a methodology commonly used to protect data by distributing redundant data blocks across ...

SearchCloudStorage

  • RESTful API

    A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...

  • cloud storage infrastructure

    Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...

  • Zadara VPSA and ZIOS

    Zadara Storage provides block, file or object storage with varying levels of compute and capacity through its ZIOS and VPSA ...

Close