An instrument that measures either ac or dc current.
A bare or insulated wire or combination of wires not insulated from one
another, suitable for carrying electrical current. They usually are copper,
aluminum, steel or silver.
The number of complete cycles in one second of alternating current,
voltage, or electromagnetic pressure waves.
The difference obtained on measuring instruments containing iron when
the current is increased to a definite value and when the current is
reduced from a higher value to the same definite value.
The power consumed by a machine or circuit in performing its function.
Having two opposite charges, one positive and the other negative.
Electrical pressure; the force which causes current to flow through an
A current measuring instrument designed to indicate voltage by
measuring the current flow through a resistance of known value.
An activity that rises and falls, or advances and retreats, as it travels
through a medium.
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