0
it is the frequency at which the current amplification drops 3dB below its low frequency value.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
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.
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
Relation between cutoff frequency and bandwidth?
The relation between cut off frequency (fc) and band width is as follows: fc=Q*B.W where Q=(fL*fH)^1/2/(fH-fL) Q is quality factor. fL is low frequency. fH is high frequency.
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.
How High pass filter circuits works?
A High Pass Filter is an Electronic Filter that passes high frequency signals but Attenuates (reduces the Amplitude ) of Signals with frequencies lower than the cut-off Frequency
How do you use This project Alpha Cut HD?
You can use This project Alpha Cut HD to support men's healthy estrogen levels.
What are the types of brain waves?
From lowest to highest frequency, Delta, Theta, Alpha and Beta
What are the application of low pass and high pass filter?
they are used in industries so to able you to work on particular frequency and cut the other for e.g if you are working for high frequency then low frequency will be cut and vise versa
Is an alpha particle and a proton released from the centre of the cycltron and made to accelerated at the same cyclotron frequency?
the alpha particle will accelerate slower and follow a tighter/smaller spiral outward than the proton.
What happens to the speed of the waves if the frequency of the wave source is halved?
The wavelength of a wave would double if the frequency was cut in half. Wavelength=c/frequency where c equals the speed of light.
What are the types of nuclear radiations?
Alpha, beta, and gamma are the main ones. Alpha is the ejection of alpha particles which are 2 protons plus 2 neutrons, which is a helium nucleus. Beta particles are electrons. Gamma radiation is EM radiation of very high frequency, beyond x-rays.
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
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.
If frequency of a sound wave is multiplied by 10 what happens to the wavelenth?
Frequency and wavelength have an inverse ratio relationship. When one doubles, the other is cut in half. When one is multiplied by 10, the other is divided by 10. The exact relationship is: wavelength = wave velocity/frequency.
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
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 type of radiation has the least ability to penetrate matter?
The Least penetrating form of radiation is Alpha as it only travels 10cm in air and is stopped by paper. Alpha is also the most ionising, Beta is less ionising still and Gamma is the least ionising as photons carry no charge so they have less effect.
