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Math: Pre-K - 8th grade; Pre-K through grade 2 (Khan Kids) Early math review; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; 3rd grade math (Illustrative Math-aligned)
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Practice finding the equivalent resistance for parallel and series resistor configurations.
In the special case where two equal resistors are in parallel, the equivalent resistance is half their value. Parallel resistance is always smaller than the smallest resistor, as it provides multiple current paths, effectively reducing the overall resistance in the circuit.
Course: Bridge Course Class 12th Physics > Unit 2. Lesson 2: Resistance in circuits. Equivalent resistance, current and voltage in pure circuits. Equivalent resistance in pure series and parallel circuits. Solving a mixed circuit.
Simplifying resistor networks (article) | Khan Academy. Electrical engineering. Course: Electrical engineering > Unit 2. Lesson 2: Resistor circuits. Series resistors. Series resistors. Parallel resistors (derivation) Parallel resistors (derivation continued) Parallel resistors.
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Review how to find the equivalent resistance for resistors in parallel and series configurations. Recall the current and voltage properties of series and parallel configurations of resistors.
Math: Get ready courses; Get ready for 3rd grade; Get ready for 4th grade; Get ready for 5th grade; Get ready for 6th grade; Get ready for 7th grade; Get ready for 8th grade
The ratio of a sinusoidal voltage to a sinusoidal current is called "impedance". This is a generalization of Ohm's Law for resistors. We derive the impedance of a resistor, inductor, and capacitor. The inductor and capacitor impedance includes a term for frequency, so the impedance of these components depends on frequency.