Workbench Skills Part 8: the breadboard — which holes are connected?

Which holes on a breadboard are connected? 🤔🔌

1️⃣ Each short row of 5 holes is ONE wire inside — a metal spring clip joins them underneath.
2️⃣ The long rails on the sides carry + (red line) and − (blue line) along the whole board.
⚠️ On some long boards the rails are split in the middle — check with your meter's beep.
3️⃣ The gap in the middle? A chip sits across it, so each leg gets its own row (no shorts!).