Question

give the names and symbols for any two common electrical components

Answer 1

Table of Electrical Symbols

SymbolComponent nameMeaningWire SymbolsElectrical WireConductor of electrical currentConnected WiresConnected crossingNot Connected WiresWires are not connectedSwitch Symbols and Relay SymbolsSPST Toggle SwitchDisconnects current when openSPDT Toggle SwitchSelects between two connectionsPushbutton Switch (N.O)Momentary switch - normally openPushbutton Switch (N.C)Momentary switch - normally closedDIP SwitchDIP switch is used for onboard configurationSPST RelayRelay open / close connection by an electromagnetSPDT RelayJumperClose connection by jumper insertion on pins.Solder BridgeSolder to close connection

Answer 2

Resistor

resistor symbol

Resistor component gives resistance that is barrier to the current flow in a circuit. There are two different symbols are widely used in schematics that is Zigzag format (US style) and Rectangle shape, this will have two pins and three pins if variable resistor. Unit of resistor is Ohm Ω.

Capacitor

capacitor symbol