Welcome to The Junction Box! Tell us a little about yourself. Answer whichever questions you’re comfortable with: - What’s your name, and where are you from? - Where are you in the electrical trade? If you’re just exploring it, tell us that too. - What got you interested in electrical work? - What kind of work do you do or hope to do? - What would you like to learn here? I’ll introduce myself in the comments. Say hello to someone else while you’re here.

You’re troubleshooting a 24-volt DC circuit with a switch and a lamp connected in series. The switch is closed, and the lamp is glowing normally. You place one voltmeter lead on each side of the closed switch. What voltage should you expect across a properly functioning closed switch? A. Approximately 0 volts. B. Approximately 12 volts. C. Approximately 24 volts. D. You can’t measure voltage across a switch. 👇 What’s your answer—and why? Here’s the troubleshooting challenge: Would that reading alone tell you whether the circuit is de-energized? Answer and explanation coming after everyone has a chance to jump in! ⚡