An electric current that continually changes in magnitude and periodically reverses polarity

Related Terms

SEEBECK EFFECT

When two different adjacent metals are heated, an electric current is generated between the metals.

SEEBECK EFFECT

When two different adjacent metals are heated, an electric current is generated between the metals.

DIELECTRIC STRENGTH

A measure of the ability of an insulating material to withstand electric stress (voltage) without failure. Fluids with high dielectric strength (usually expressed in volts or kilovolts) are good electrical insulators. (ASTM Designation D 877.)

AMMETER

An instrument for measuring the magnitude of electric current flow.

AMMETER

An instrument for measuring the magnitude of electric current flow.

AMMETER

An instrument for measuring the magnitude of electric current flow.

ARC

A flash, caused by an electric current ionizing a gas or vapor.

ARC

A flash, caused by an electric current ionizing a gas or vapor.

ALIVE

A term referring to a circuit in which a current is flowing. Also referred to as live.

ASME PART PEB SECTION I

Requirements for electric boilers.

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