voltmeter.md

(Red‑zone draft)

Voltmeter#

Voltmeters measure electrical potential difference. Their operation is simple but highly dependent on grounding, impedance, and circuit assumptions.

Dimensional Core (SET)#

• Spin: not relevant
• Elec: primary axis
• Temp: affects noise and drift

Why Red‑Zone#

Voltmeters operate in a circuit‑dependent regime.
Their readings depend on loading effects, grounding, and hidden circuit paths.

Regime Notes#

• pos‑regime: high‑impedance measurement, stable circuits
• Q‑regime: noise, ground loops
• neg‑regime: loading effects, unstable references

Containment Notes#

Requires explicit circuit‑context boundaries.