A current which is uniformly maintained in a steady stream.
A current produced by electro-dynamic induction.
An apparatus for indicating the strength of a current. An ammeter.
A current which periodically alternates.
A periodically varying current strength.
A current which has a constant direction, but has a continuously varying strength.
The change of movement of a magnetic needle out of its regular direction of movement.
When a current passes through a coil wound on an iron core, the core becomes magnetized. When the current ceases the core is no longer a magnet. It is then said to be demagnetized. It also has reference to the process for making a watch non-magnetic so that it will not be affected when in a magnetic field.
The removal of magnetism from a permanent magnet, or a horse-shoe magnet, for instance. It is generally accomplished by applying heat.
Mechanism for indicating the presence of a current in a circuit.
A non-conductor for an electric current, but through which electro-static induction will take place. For example: glass and rubber are dielectrics.
The current flowing from an accumulator.
The breaking up of the plate or active material.
A static discharge passing through a dielectric.
A pair of wires usually twisted together and insulated from each other to form the conducting circuit of a system.
The term applied to a current flowing through a wire.
An apparatus, consisting of core and field magnets, which, when the core is turned, will develop a current of electricity.
Instead of using two wires to carry a circuit, the earth is used for what is called the return circuit.
The total electrical energy produced, in which that wasted, as well as that used, is calculated.