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Resistors

Resistors Notes

QuestionAnswer
What passive circuit components impede the flow of electric charge and are measured in ohms? Resistors
What law states that resistance equals voltage divided by current (V = IR)? Ohm's law
What geometric symbol is traditionally used to represent a resistor on circuit schematics? Zigzag line
What feature on a resistor's ceramic shell uses colored stripes to indicate its resistance value and tolerance? Colored bands
What diamond-shaped circuit configuration of four resistors is used to measure an unknown resistance value? Wheatstone bridge
What type of three-terminal variable resistor uses a sliding wiper to adjust voltage or potential division? Potentiometer
How do resistance values combine when resistors are connected in a series circuit? Add linearly (R1 + R2 + R3...)
How do resistance values combine when resistors are connected in a parallel circuit? Sum of reciprocals (1/Req = 1/R1 + 1/R2...)
What thermal noise produced by ideal resistors at rest has power proportional to 4 kB T? Johnson-Nyquist noise
What physical property of a resistor is inversely proportional to its resistance, along with resistivity and length? Cross-sectional area
What ideal electrical measuring device is defined as having an infinite resistance? Voltmeter
What type of circuit combines a resistor, an inductor, and a capacitor to create damped oscillations? RLC circuit
What temperature-sensitive resistors have resistance changes modeled by the Steinhart-Hart equation? Thermistors
What low-resistance component placed in parallel with a voltmeter is used to measure high currents indirectly? Shunt resistor
What theoretical fourth basic circuit element exhibits a pinched hysteresis loop and displays resistance with memory? Memristor
Created by: kromeo
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