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A capacitor alone doesn't have a frequency. The combination
of a capacitor and an inductor (coil) has.
-- Read the value of capacitance printed on the capacitor, or measure it. Call it ' C '.
-- Read the value of inductance printed on the coil, or measure it. Call it ' L '.
The resonant frequency of the combination of those two components is
F = 1 / (2 pi) sqrt(L C)
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What two facctors determine the capacitive reactance of a capacitor?
The reactance of a capacitor is a function of -- the capacitance of the capacitor -- the frequency of the voltage across the capacitor
What two factors determine the capacitive reactance of a capacitor?
capacitive reactance is inversely proportional to the capacitance of the capacitor and frequency of the AC line reactance (in ohms) = 1/(capacitance * frequency)
What happens to the resistance when the frequency is doubled?
Impedance of a coil or a capacitor does depend on the excitation frequency,but resistance has no relationship to frequency.
What dose the frequency of a sound wave determine?
The frequency of a sound wave will determine the pitch (or note).
What is determine by wave frequency?
The wave length w=v/frequency.
What two facctors determine the capacitive reactance of a capacitor?
The reactance of a capacitor is a function of -- the capacitance of the capacitor -- the frequency of the voltage across the capacitor
What two factors determine the capacitive reactance of a capacitor?
capacitive reactance is inversely proportional to the capacitance of the capacitor and frequency of the AC line reactance (in ohms) = 1/(capacitance * frequency)
Why does the reactance of a capacitor decrease with frequency?
Because reactance of capacitor is inversly proportional to the frequency i.e- Xc=1/(2*pie*f*c) where f is frequency and c is capacitance of capacitor.
Can a capacitor be used in the Thevenin Theorem?
Sure, but it won't mean anything unless the Thevenin source is an AC source. In that case, simply determine the frequency of the source, and draw the appropriate reactance in the circuit where the capacitor belongs. If the Thevenin source is DC, then the frequency is zero, the reactance of the capacitor is infinite, and you can show it as an open circuit, i.e. not there.
How does a capacitor act as a filter?
The cutoff frequency of filter depends upon the value of capacitor and resistance. Therefore, below cutoff frequency or above this frequency, capacitor allow to pass all other frequencies.
How does a capacitor acts as a filter?
The cutoff frequency of filter depends upon the value of capacitor and resistance. Therefore, below cutoff frequency or above this frequency, capacitor allow to pass all other frequencies.
How do you determine if the capacitor is defective?
To determine if a capacitor is defective, use an Ohmmeter of a Multimeter.
How the capacitor set lower cutoff frequency limit?
A capacitor totally blocks DC current (it's an open circuit to it). The higher the frequency, the less resistance (impedance) the capacitor has.
How capacitor behave in alternating current?
Capacitors have an equivalent reactance of 1/jwC (ohms) where w is the angular frequency of the AC signal and C is the capacitance. As the frequency of the signal across the capacitor increases, the capacitor reactance approaches 0 (capacitor acts like a short circuit). As the frequency of the signal across the capacitor decreases, the capacitor reactance approaches infinity (capacitor acts like an open circuit). So, if you have a high frequency signal (like a step input) the capacitor will momentarily act like a short.
Where you have requirement of capacitor in electronics?
A capacitor is required in electronics when we are charging and frequency circuits.
The capacitive reactance of a capacitor increase as?
The capacitive reactance of a capacitor increases as the frequency decreases.
Is a capacitor sensitive to frequency?
yes, capacitive reactance is inversely proportional to frequency.
