Answer :
Final answer:
A capacitor is the device used to store energy and facilitate voltage boosting or power factor correction.
Explanation:
The device that can store energy and is used to either boost voltage or provide power factor correction is a capacitor. Capacitors have the ability to store electric charge, which can be used to supply energy in various applications including defibrillators, microelectronics such as calculators, and flash lamps. The energy stored in a capacitor can be calculated using the formulas CV², Q²/2C, or QV/2, where C is the capacitance, V is the voltage, and Q is the charge. Commercial capacitors feature two conducting plates that are separated by an insulator, allowing them to store charge without conducting a current.
