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Amplifiers react differently to different frequencies. The amount that an amplifier reacts is usually measured in power (decibels). At a certain frequency (usually higher frequencies) the amplifier will react (output) only 50% of the power it is given (this works out to -3dB) this is the standard cutoff frequency and the cutoff region is anywhere below -3dB on a bode plot(This is a plot which shows the frequency input versus the response. These are very common when talking about amplifier characteristics).
What else can I help you with?
What are the least efficient of class of amplifier?
class b amplifiers as for class b amplifier the 'Q' point is near to cut of region.
Which regions FET can be operated as a switch?
Saturation region(on) and Cut off region(off).
What is cut off region in electronics and communication?
it is a region to the left of the peak point
Why to have a filter before and after a low noise amplifier?
To cut off unwanted frequencies, unwanted frequencies are called noise.
Does a transistor in cut-off region acts as an open switch?
No
Which mountain chains cut off turkey and Iran from the rest of the region?
The Zagros Mountains cut off Iran from the rest of the Middle East and the Taurus Mountains cut off Turkey from the rest of the Middle East.
What is the value of Ic when transistor is in cut off region?
Zero, or close to zero.
What are the operating regions of transistors?
operating region of the transistor is the area of the voltage and an electronic configuration in which a transistor can work with its full efficiency. In that operating region transistor can be used easily what above said by harsh is correct...the following may help u further... Based on application the transistor is decided where to lie. for example transistors are made to lie in active region to make it as amplifier. when transistors are used as switch it is made to lie in saturation region(when switch is made as ON) and cut-off region(when switch is made as OFF).....
What amplifier circuit is typically used as the input stage for an operational amplifier?
Differential amplifier ANSWER: A differential amplifier is an op amp. If any amplification is required a preamplifier is used mainly to cut the white noise and improve the input impedance
What is the operating point in transistor biasing?
The operating point of a transistor is the point on its conduction curve that the engineer has selected for its operation, based on the intended function of the circuit the transistor is used in. This will vary with this function:a class A amplifier will have its operating point in the center of the linear range of the conduction curve.a class B amplifier will have its operating point at the cut off point of the conduction curve.logic gates will usually have the operating point near the cut off point off the conduction curve.etc.
What are the uses of transistor in circuits?
Basically each and every amplifier circuit is made up of coupling or use of transistors. The amplifier amplifies the signals because transistor makes either voltage or current to rise as a result of either of it's regions of operation i.e. open circuit(cut off region) or short circuit (saturation region) Both the operation regions are not required continuously. Hecne the transistor works in either saturation or cut off regions only when emitter-base junction is forward biased, which can be applied as per requirement. APPLICATIONS OF TRANSISTOR AND HENCE AMPLIFIERS ARE : OSCILLATORS, LOUD-SPEAKERS, POWER AMPLIFIERS, VOLTAGE AMPLIFIERS, CURRENT AMPLIFIERS, ANALOG TO DIGITAL CONVERTER, DIGITAL TO ANALOG CONVERTERS
Connect a 12v wire to an amplifier?
Ensure the amplifier is turned off. Connect the positive (+) terminal of the 12V wire to the amplifier's positive terminal and the negative (-) terminal of the 12V wire to the amplifier's negative terminal. Once connected securely, you can then power on the amplifier.
