Math & Numbers
Ohm's Law and Power Triangle Calculator
Solve for two unknowns among Voltage, Current, Resistance and Power from any two given values, with visual triangles and AC power-factor support
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Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/ohms-law-calculator' \
-H 'Content-Type: application/json' \
-d '{"V":12,"I":0,"R":6,"P":0,"mode":"dc","cosPhi":0.85}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST https://api.elysiatools.com/en/api/tools/ohms-law-calculatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| V | number | No | — |
| I | number | No | — |
| R | number | No | — |
| P | number | No | — |
| mode | select | No | — |
| cosPhi | number |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-ohms-law-calculator": {
"name": "ohms-law-calculator",
"description": "Solve for two unknowns among Voltage, Current, Resistance and Power from any two given values, with visual triangles and AC power-factor support",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=ohms-law-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
tools/list
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
tools/call
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "ohms-law-calculator",
"arguments": {
"V": 12,
"I": 0,
"R": 6,
"P": 0,
"mode": "dc",
"cosPhi": 0.85
}
}
}Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).
Questions or issues? Contact [email protected]