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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.
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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.
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 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
When was Cedarhurst Cut-off created?
Cedarhurst Cut-off was created in 1871.
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.
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
How do you find the fuel cut iff switch on a 1997 ford probe car?
find fuel cut off switch
