Multimeter and car: what they have in common
- Step 1. Multimeter — evolved from — Galvanometer. Analogue multimeters are a galvanometer with shunts.
- Step 2. Galvanometer — has part — Permanent magnet. A magnet.
- Step 3. Permanent magnet — is part of — Speedometer. A rotating magnet drags the needle.
- Step 4. Speedometer — is part of — Dashboard. A speedometer.
- Step 5. Dashboard — is part of — Car. Gauges.