The opposition of a circuit element to a change of electric current or voltage, as happens in capacitors and inductors.
Questions tagged [reactance]
132 questions
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Is the formula for inductive reactance the same when considering rectified AC?
Is the formula X\$_L\$ = 2\$\pi\$fL still true for rectified (but unfiltered) AC (in which case the frequency f, and therefore the reactance, would be doubled in the case of full-wave rectification)?
I forgot to add a parasitic resistor in series…
user1247
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what does low reactance mean physically
What does "lower" reactance (higher susceptance) mean for a physical system, and when is it "good"? I see that it has less opposition to a change in voltage or current, but what does that mean? Lower resistance makes sense to me in that current can…
rrrrr
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What's the relationship between susceptance and reactance?
I was trying to find the relationship between these two online, but I found out two completely opposite answers, and I'm wondering which one is the right one.
Is B = -1/X or is B = 1/X ?
Edward B
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Why is the energy stored in the capacitor equal to 0J at the instant the inductor is storing its peak energy when they're in a series combination?
Question is the title.
An extra point would be, what would be different if now the capacitor and inductor were placed in parallel. Would it still be 0?
zoghii
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What is the capacitive reactance in this case?
Capacitive reactance in ohms is defined as:
$$X_C(\omega) = \frac{1}{2\pi f C}$$
where the unit of C is farad.
Focusing on the frequency \$f\$ in the equation:
If the input signal to the capacitor is a single current pulse with 50 ps rise time, 10…
user1245
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