At a high frequency, the alternating current through a capacitor in an alternating currentcircuit will be
Correct answer: B. Large.
- A. Zero.
- B. Large.
- C. Small.
- D. Undetermined.
Explanation
In an AC circuit, the current through a capacitor depends on the capacitive reactance, which is inversely proportional to the frequency. At high frequencies, the reactance is low, allowing more current to pass through, making the current large. Therefore, the correct answer is 'large.' The other options are incorrect because they do not accurately reflect the relationship between frequency and capacitive reactance.
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About AC Through Resistor, Capacitor and Inductor
Alternating current through a resistor, capacitor and inductor involves phase relationships between voltage and current, reactance, impedance and energy transfer. A resistor keeps voltage and current in phase, while a capacitor and inductor produce opposite phase shifts, a distinction used in circuit diagrams and numerical calculations.
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