3V
3V is a common battery size, typically referring to coin-cell or button batteries like the CR2032.
The designation indicates the battery's voltage output.
In electronics, 3V also describes low-voltage circuits and components: a 3V power supply, This sensor runs on 3V.
Electrical potential difference
- currentDirected flow of charge
- powerEnergy transfer rate
- circuitClosed electrical pathway
- batteryPortable electricity storage
inverter · transformer · wiring · DC · AC · solar panel · converter · regulator
Flat circular battery
- button batterySmall disc-shaped power cell
- lithiumLightest solid element
- watch batteryPower source for timepieces
- remote controlWireless device operator
motherboard · CMOS · hearing aid · calculator · LED · low power · discharge · capacity
Integrated circuit with processor
- ArduinoOpen-source prototyping platform
- breadboardSolderless circuit-building platform
- resistorCurrent-limiting circuit element
- sensorInput-detecting device
embedded · low voltage · signal · component · transistor · capacitor · diode · prototype
voltage
Electrical potential difference
battery · inverter · transformer · wiring · DC · AC · solar panel · converter · regulator · amperage
coin cell
Flat circular battery
- button batterySmall disc-shaped power cell
- lithiumLightest solid element
- watch batteryPower source for timepieces
remote control · motherboard · CMOS · hearing aid · calculator · LED · low power · discharge · capacity · shelf life
microcontroller
Integrated circuit with processor
- ArduinoOpen-source prototyping platform
- breadboardSolderless circuit-building platform
- resistorCurrent-limiting circuit element
sensor · embedded · low voltage · signal · component · transistor · capacitor · diode · prototype · maker