A constant discharge of electricity of high tension between the electrodes is effected by means of an induction-coil.
The purpose of the induction-coil is to raise the voltage of the battery.
In these ten days the foundation was laid for the induction-coil, modern dynamo-electric machinery, and electric lighting.
In so doing, you have simply had the current from the secondary of an induction-coil.
This is one of the principal reasons why induction-coil cores are made up of a bundle of wires instead of a solid piece.
When these two wires are wound in coils, together they form an induction-coil.
An Interrupter must be inserted between the battery and one of the wires leading to the primary-coil of the induction-coil.
Faraday, as we have seen, discovered the principle of the induction-coil.
With the induction-coil a powerful electric spark can be produced.
The induction-coil may be operated by a storage battery or dynamo.
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