SI Units

ओम

परिभाषा

विद्युत प्रतिरोध की SI इकाई, जब एक वोल्ट का विभवांतर एक एम्पियर धारा प्रवाहित करे (1 Ω = 1 V/A)।

व्याख्या

Named after Georg Simon Ohm, who formulated Ohm's law (V = IR). A standard LED circuit resistor is typically 220–470 Ω; a human body's resistance ranges from 1,000 Ω (wet skin) to 100,000 Ω (dry skin). Resistors in series add directly: two 100 Ω resistors in series equal 200 Ω.

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