Ohm's Law (for a complete circuit)
Formula: I = (E)/(R + r) Conditions: Closed loop with constant electromotive force E and internal resistance r. Explanation: The current I in a closed circuit…
Syllabus path: Electromagnetism › DC Circuits › Ohm's Law
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CSCA Physics Formula Reference
Formula and explanation
Formula: I = (E)/(R + r) Conditions: Closed loop with constant electromotive force E and internal resistance r. Explanation: The current I in a closed circuit is directly proportional to the electromotive force E and inversely proportional to the total resistance (R + r) of the circuit.
Related tutorial and examples
Ohm's Law
Topic: Electromagnetism > DC Circuits > Ohm's Law 1. Core Law: Ohm's Law Ohm's Law is the cornerstone of circuit analysis. It reveals the quantitative relationship between voltage, current, and resistance in pure resistive elements. Formula: I = (U)/(R) Physical Meaning: The curr…
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