Figure 4 Circuit and Phasor Diagram

Capacitive Reactance

Capacitive Reactance Summary

Electrical Science Volume 3 of 4
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Basic AC Reactive Components CAPACITANCE where I = effective current (A) E = effective voltage across the capacitive reactance (V) X_C = capacitive reactance (W) Example: A 10µF capacitor is connected to a 120V, 60Hz power source (see Figure 4). Find the capacitive reactance and the current flowing in the circuit. Draw the phasor diagram. Figure 4 Circuit and Phasor Diagram Solution: 1. Capacitive reactance X_C 1,000,000 2pfC 1,000,000 (2)(3.14)(60)(10) 1,000,000 3768 X_C 265.4W Rev. 0 Page 7 ES-08

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