Series/Parallel Resistor Combiner implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t2-006

Effect

Computation or source lookup only

Input and validation requirements

A zero-ohm resistor in a parallel network makes the reciprocal formula divide by zero, so the instrument must reject the input or implement an explicit ideal-short rule. Results also depend on an explicit resistance-unit convention.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "resistors": [
      {
        "value": 100,
        "unit": "ohm"
      },
      {
        "value": 220,
        "unit": "ohm"
      },
      {
        "value": 330,
        "unit": "ohm"
      }
    ],
    "topology": "series"
  },
  "expected_outputs": {
    "Req": {
      "value": 650,
      "unit": "ohm"
    }
  },
  "working": "Rs = 100 Ω + 220 Ω + 330 Ω = 320 Ω + 330 Ω = 650 Ω."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche2/tranche2-results.json