If the frequency to a capacitor increases, the current through it
- decreases.
- increases.
- is zero.
Explanation
Capacitive reactance equals 1 / (2 x pi x f x C), so it falls as frequency rises. With less reactance opposing the flow, more current passes through the capacitor at the higher frequency.
obrien99 asking:
if the formula for capacitive reactance is 1/2piFC
then as frequency increases capacitive reactance would decrease
this would in turn allow more current to flow?
Community Comments (2)
M
mowhar Posts: 4 27.11.2014 / 12:06
yes current will increase
D
dimky Posts: 514 28.11.2014 / 12:52
If it really does mean 'through' it, the answer is zero, as no current goes 'through' a capacitor regardless of its frequency.
However, if it means the current in the circuit, the capacitive reactance will go down, thus its current will go UP.
However, if it means the current in the circuit, the capacitive reactance will go down, thus its current will go UP.
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