DCACLab › Community circuits › Relay › Emergency DC Power supply

Emergency DC Power supply

An interactive resistor, lamp, battery and power source circuit built in the DCACLab online simulator by Farhan Sheikh.

What's inside

1× Battery
1× Power Source
1× Resistor (49.9 Ω)
1× Switch
1× Relay
2× Lamp

Tags

Relay Power Source Lamp Switch Battery Resistor

About

By Farhan Sheikh
Saved July 24, 2019 · updated January 15, 2026
2,298 views

Related circuits

Project 1: 6/24/26
CIRCUITO VARIABLE
COMP
Circuit Suvichada_1 Thailand
4th round
circuito variable

Open the circuit page → Close and keep building →

Tags: Relay Power Source Lamp Switch Battery Resistor