These diodes can be used in clipping and clamping circuits, as rectifiers in dc circuits etc.

This article gives some of the frequently used symbols for drawing the circuits.

There are many electrical and electronic schematic symbols are used to signify basic electronic or electrical device.

Poles define the number of circuits it can be connected to and throws defines the number of positions that a pole connects.

This switch allows the current to flow in any one of the two directions by adjusting its position.

This can connect the four circuits by changing the position.

This can control the AC Loads using the DC voltage applied to the coil.

There may be several signal grounds in a circuit due to the voltage drops in a circuit.

They are generally used to control the current in the circuit.

Generally used in tuning circuits and power control applications like heaters, ovens etc Preset.

The resistance is adjusted with rotary control present on top of it with the help of a screw driver.

They are used to adjust the sensitivity of the circuit like temperature or light.

They are used in temperature sensing, current limiting circuits, over-current protection circuits etc.

Generally used in circuit protection from voltage surges and excessive transient voltages.

The resistance of magneto resistor varies according to the external magnetic field strength.

They are used in electronic compass, ferrous material detection, position sensors etc.

LDR.

The resistance of LDR varies with the intensity of the light incident on it.

They are made from simple voltage dividers and hence can be classified in the family of the resistors.

Memristor.

Memristors can be used in signal processing, logiccomputation, non-volatile memory etc.

Non-polarized capacitors are big in size with small capacitance.

They can be used as filters, for bypassing or passing low frequency signals.

Ferrite core or Ferromagnetic inductors have high permeability and require air gap to reduce it.

These are mostly used to suppress the interference of electromagnetic waves.

The inductance is varied by sliding the core in or out of the coil.

Electrical Schematic Symbols