Basic Electrical & Electronics Symbols
তারসমুহ/Wires
তার/WireRepresents a conductor that conducts electrical current. Also called a power line or electric line or wire.
সংযুক্ত তারসমুহ/Connected Wires
Represents the connection of two conductors. Dot shows the junction point.
সংযোগবিহীন তারসমুহ/ Unconnected Wires
Represents two unconnected wires/conductors.
ইনপুট বাস লাইন/Input Bus Line
Represents a bus for input or incoming data.
আউটপুট বাস লাইন/Output Bus Line
Represents a bus for output or outgoing data.
টার্মিনাল/Terminal
Represents start or end point.
বাস লাইন/Bus Line
Represents a number of conductors joined together to form a bus wire.
সুইচসমুহ/Switches
This switch is in ON state when the button is pressed otherwise it is in OFF state.
পুশ বাটন (সাধারনত বন্ধ)/Push Button (Normally Closed)
This switch is initially in ON state. This goes to OFF state when it is released.
এসপিএসটি সুইচ/Spst Switch
Single pole single throw is abbreviated as SPST. This acts as ON/OFF switch. Poles define the number of circuits it can be connected to and throws defines the number of positions that a pole connects.
এসপিডিটি সুইচ/Spdt Switch
Single pole double throw is abbreviated as SPDT. This switch allows the current to flow in any one of the two directions by adjusting its position.
ডিপিএসটি সুইচ/Dpst Switch
Double pole single throw is abbreviated as DPST. This switch can drive two circuits at a time.
ডিপিডিটি সুইচ/Dpdt Switch
Double pole double throw is the full form of DPDT. This can connect the four circuits by changing the position.
রিলে সুইচ/Relay Switch
This represents the relay switch. This can control the AC Loads using the DC voltage applied to the coil.
সোর্স/Source
এসি সাপ্লাই/AC Supply
This represents AC supply in the circuit.
ডিসি সাপ্লাই/DC Supply
This represents the DC power supply. It applies DC supply to the circuit.
ধ্রুব কারেন্ট উৎস /Constant Current Source
The symbol represents an independent current source which delivers constant current.
নিয়ন্ত্রিত কারেন্ট সোর্স/Controlled current Source
It is a dependent current source. Usually depends on other sources (voltage or current).
নিয়ন্ত্রিত ভোল্টেজ সোর্স/Controlled Voltage Source
It is a dependent voltage source. Usually depends on other sources (voltage or current).
সিঙ্গেল সেল ব্যাটারি/Single Cell Battery
This provides supply to the circuit.
মাল্টি সেল ব্যাটারি/Multi Cell Battery
Combination of multiple single cell batteries or a single large cell battery. The voltage is usually higher.
ওয়েভ জেনারেটর/Wave Generators
সিনোসয়ডাল জেনারেটর/Sinusoidal Generator
Represents sine wave generator.
পালস জেনারেটর/Pulse Generator
Represents pulse or square wave generator.
ট্রায়াংগুলার ওয়েভ/Triangular Wave
Represents triangular wave generator.
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