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Basic Electricity- Electrical Symbols
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Basic Electricity- Electrical Symbols
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13 Questions

1.
is also called a coil or reactor. The coils store energy in a magnetic field or flux. An inductor symbol looks like a series of looped coils.

2.
Marks a device, rod, or wire designed to capture radio and electromagnetic waves into electrical signals and vice versa.

3.
is a standard diode symbol with two small arrows showing the emission of light

4.
only allows current to flow in one direction. It's always polarized with an anode (A, positive) and cathode side (C, negative).

5.
is a device that can transform electric energy into mechanical energy.

6.
is two or more coils coupled by magnetic induction. It helps keep the frequency and reduce tension in an AC circuit.

7.
are represented on a schematic with a pair of disproportionate, parallel lines.

The number of lines indicates the number of series cells in the battery.

8.
Disconnects the current when open. We're showing a simple SPST (single-pole single-throw) toggle switch, but there are variations for SPDT, pushbutton, dip, relay, and more. For a complete list of switch symbols, check out SmartDraw's electrical symbol library.

9.
symbol shows two terminals running into plates. The curved plate indicates that the capacitor is polarized. The curved side has lower voltage. A small plus sign can be added to the straight side indicated the positive pin.

10.
protects electrical circuits by stopping the flow of current when the intensity of current exceed a set value. It does this by melting a special wire.

11.
(IEC symbol 5017) identifies a ground terminal. It can be used for a zero potential reference point from where current is measured. It is also for electrical shock protection. There are a few different ground symbols. The one we're showing here
is 'Earth', but there's also a Chassis and Digital/Common ground with slight variations to this symbol.

12.
reduces current flow. In a schematic, this is represented with a few zig zag squiggles. We're showing the US/Japan version of this symbol (IEEE). The UK uses a simple box over a straight line (IEC). There are also symbols for variable and adjustable resistors as well as thermal and preset resistors.

13.
Represents the power source for your electronics. This symbol represent a direct current (DC). To represent AC current, you'd replace the plus and minus sign with a wave

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