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Different methods for different circuits. In a simple RC filter with a series R and shunt C, the time-constant T is equal to RC. The cutoff frequency is given by 1/(2.pi.T).
So with 1 k-ohm and 0.1 uF the time-constant is 1000 x 1E-7 or 100 microseconds, so the cutoff frequency is 10,000/2pi which is 1592 Hz.
What else can I help you with?
Frequency response of bjt amplifier?
All amplifier typically exhibit a band-pass frequency response. The cut off frequency in the low end is usually determined by the coupling band bypass capacitor .and the high frequency limit is typically determined by internal capacitances in the transistor itself.
Does common collector has high cut off frequency?
The common collector configuration, also known as the emitter follower, typically has a high cut-off frequency due to its low output impedance and ability to drive loads effectively. However, the actual cut-off frequency depends on factors such as the transistor's characteristics, the load, and the circuit design. While it can achieve good frequency response, it may not match the high cut-off frequency of other configurations like common emitter or common base. Thus, while the common collector can perform well at high frequencies, it is not universally the highest among all configurations.
What will happen if the signal frequency is greater than cut-off frequency in a waveguide?
If the signal frequency exceeds the cut-off frequency in a waveguide, the wave will not propagate through the waveguide and will be attenuated. This is because the waveguide is designed to support only certain modes of propagation, and frequencies above the cut-off do not satisfy the waveguide's mode conditions. Instead, the signal will either reflect back or be absorbed, leading to a loss of signal strength.
What is the cut off frequency of an Anechoic chamber?
The cut-off frequency of an anechoic chamber refers to the lowest frequency at which the chamber can effectively attenuate sound waves, allowing for accurate acoustic measurements. This frequency is determined by the size and design of the chamber, particularly the thickness and material of the sound-absorbing walls. Typically, it ranges from around 100 Hz to 500 Hz, depending on the chamber's specifications. Below this cut-off frequency, sound reflections may interfere with measurements, compromising the anechoic environment's effectiveness.
What will be the change in frequency response curve of JFET if Ci and Ce are interchanged?
If the input capacitance (Ci) and the emitter bypass capacitance (Ce) are interchanged in a JFET circuit, the frequency response curve will be significantly affected. Ci typically influences the high-frequency response, while Ce primarily affects the low-frequency response by providing a bypass path for AC signals. Interchanging them may lead to a shift in the cutoff frequencies, potentially degrading the amplifier's performance and altering the gain at different frequencies. As a result, the overall frequency response curve could exhibit higher low-frequency roll-off and altered high-frequency behavior.
Frequency response of bjt amplifier?
All amplifier typically exhibit a band-pass frequency response. The cut off frequency in the low end is usually determined by the coupling band bypass capacitor .and the high frequency limit is typically determined by internal capacitances in the transistor itself.
Does common collector has high cut off frequency?
The common collector configuration, also known as the emitter follower, typically has a high cut-off frequency due to its low output impedance and ability to drive loads effectively. However, the actual cut-off frequency depends on factors such as the transistor's characteristics, the load, and the circuit design. While it can achieve good frequency response, it may not match the high cut-off frequency of other configurations like common emitter or common base. Thus, while the common collector can perform well at high frequencies, it is not universally the highest among all configurations.
What will happen if the signal frequency is greater than cut-off frequency in a waveguide?
If the signal frequency exceeds the cut-off frequency in a waveguide, the wave will not propagate through the waveguide and will be attenuated. This is because the waveguide is designed to support only certain modes of propagation, and frequencies above the cut-off do not satisfy the waveguide's mode conditions. Instead, the signal will either reflect back or be absorbed, leading to a loss of signal strength.
Why the te0 mode is the dominant mode in rectangular waveguide?
Because it has the lowest cut-off frequency (highest cut off wavelength) for a>b o
How does bandwidth of a current series feedback amplifier change with frequency?
Bandwidth does not change with frequency. Bandwidth defines (part of) how the response of a circuit changes with frequency. Other things that define how the response of a circuit changes with frequency are: phase shift, roll-off rate, linearity of the passband, etc. but bandwidth ignores these.
What will be the change in frequency response curve of JFET if Ci and Ce are interchanged?
If the input capacitance (Ci) and the emitter bypass capacitance (Ce) are interchanged in a JFET circuit, the frequency response curve will be significantly affected. Ci typically influences the high-frequency response, while Ce primarily affects the low-frequency response by providing a bypass path for AC signals. Interchanging them may lead to a shift in the cutoff frequencies, potentially degrading the amplifier's performance and altering the gain at different frequencies. As a result, the overall frequency response curve could exhibit higher low-frequency roll-off and altered high-frequency behavior.
Why cut off frequency is called half power frequency?
Cut off frequency is that frequency at which the power output of the circuit reduces to half of its power in pass band. Power (P)= Current2 X Resistance. so to reduce the power by half we need to reduce the current by 1/sqrt{2} = 0.707 = 3 db. So it's also called half power frequency. http://enter4joy.com
Anna university ranking for cut off marks and to find colleges for cut off marks?
173.25
What is meant by beta cutoff frequency?
The beta cut off frequency is the frequency at which the current amplification of an amplifier transistor drops to three decibels below its value at 1 kilohertz. This is used in electronic engineering.
Can a waveguide have more than one cut off frequency?
yes it can have coz fc= c/2[(m/a)2+(n/b)2]1/2 therefore for various modes(which decide m,n) nd dimensions(a,b) of waveguide it will have different cut off frequency. A normal waveguide is used in the octave frequency range where only the fundamental mode can propagate.
What about deathware?
General Answer, WHAT IF WE GET SO PISSED OFF THAT WE FIND YOU OUT AND CUT YOUR BALLALICAS OFF?
What causes the gain of OP AMP to roll off after a certain frequency is reached?
A: Any amplifier will reach a frequency cut off point because of hindered circuit capability however the roll of bust be controlled especially when reaching oDB point must be at a -3 db roll off to prevent hi frequency oscillation
