We know that a transformer fire often leads to a power outage.
They showed him a one-foot-high robot that looked like a transformer.
You know what a transformer does, but what does the name by itself convey?
This knob here controls a condenser, and this one a transformer.
And all the while the humming of the transformer as the force field built up.
The former is called "step-up" while the latter is a "step-down" transformer.
It is an induced current produced by a transformer placed near the house.
The secondary of this transformer is connected to the antenn (A) and the earth (E).
This experiment illustrates the construction and action of a transformer.
These last pieces are to form the core and part of the end of the transformer.
"device to reduce electrical currents," 1883, from French transformateur (1882); see transform.
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transformer A device used to change the voltage of an alternating current in one circuit to a different voltage in a second circuit, or to partially isolate two circuits from each other. Transformers consist of two or more coils of conducting material, such as wire, wrapped around a core (often made of iron). The magnetic field produced by an alternating current in one coil induces a similar current in the other coils. ◇ If there are fewer turns on the coil that carries the source of the power than there are on a second coil, the second coil will provide the same power but at a higher voltage. This is called a step-up transformer. ◇ If there are fewer turns on the second coil than on the source coil, the outgoing power will have a lower voltage. This is called a step-down transformer. Compare converter, rectifier. |
A device used to transfer electrical energy from one circuit to another. With an alternating current, a transformer will either raise or lower the voltage as it makes the transfer.
