Q: What is the function of a capacitor in electronic circuits?
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A
To amplify signals
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B
To store and release electrical energy
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C
To convert AC to DC
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D
To measure current
B
Answer:
B
Explanation:
Capacitors are passive electronic components that store and release electrical energy in a circuit. They consist of two conductive plates separated by an insulating material called a dielectric. When connected to a voltage source, capacitors accumulate charge on their plates, storing energy in the electric field created between them. This stored energy can be released when the circuit requires it, helping to smooth voltage fluctuations, filter signals, and manage power supply in electronic devices. Capacitors are widely used in applications like signal coupling, decoupling, timing, and in communication systems for tuning and frequency management.
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