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When transistor acts as an amplifier then does its output voltage increase or decrease?
That depends on both the input signal and the type of amplifier the transistor is used in.
How does using a transistor with a different beta affect the operation of the common emitter amplifier?
Gain, in the common emitter amplifier, is beta (hFe) or collector resistance divided by emitter resistance, whichever is less. Substituting a different beta (hFe) transistor will affect gain, if hFe is less, or increase stability and design margin, if hFe is greater.
What is the amplifier?
An amplifier is an electronic device used to increase the amplitude of electrical signals in sound production.
Why power amplifier used in FM transmitter?
Amplifier is used in an FM transmitter to increase the level of a signal suitable for transmission
How did the amplifier get its name?
Answer 1: From the word amplfy, which is transitive verb me:ning 1 : to expand (as a statement) by the use of detail or illustration or by closer analysis 2 a : to make larger or greater (as in amount, importance, or intensity) : increase b : to increase the strength or amount of; especially : to make louder c : to cause (a gene or DNA sequence) to undergo amplification Answer 2: The word "amplifier" is derived from the word "ample" which, in turn is derived from the Latin word "amplus" meaning full or plentiful or generous in size. Any part of the electromagnetic spectrum can be amplified, but the term usually refers to the audible spectrum (20 - 20,000 hertz) where the sound is made greater by an amplifier.
When transistor acts as an amplifier then does its output voltage increase or decrease?
That depends on both the input signal and the type of amplifier the transistor is used in.
How is sound amplified and what factors contribute to the amplification process?
Sound is amplified through the use of devices such as speakers or microphones that increase the volume of sound waves. Factors that contribute to the amplification process include the power of the amplifier, the sensitivity of the microphone or speaker, and the quality of the audio equipment being used.
How can you increase intensity of a sound?
You can amplify the sound waves by microphone, amplifier and loudspeaker.
How do you increase the imput impedance of instrumentation amplifier?
Use a series resistance at the input. A problem could be that the amplification goes down.
When a transistor is used as an amplifier increasing the base current will cause an increase in?
Increasing base current causes a proportionate increase in collector current - proportionate to hFe, unless the transistor is operated outside of linear mode.
How can you increase amplification?
are you referring to DNA amplification using PCR
How does using a transistor with a different beta affect the operation of the common emitter amplifier?
Gain, in the common emitter amplifier, is beta (hFe) or collector resistance divided by emitter resistance, whichever is less. Substituting a different beta (hFe) transistor will affect gain, if hFe is less, or increase stability and design margin, if hFe is greater.
What is the basic difference between transistor as an amplifier and a step up transformer?
The output power of an amplifier is greater than its input power, whereas the output power of a transformer is almost the same as its input power. In other words, an amplifier increases acts to increase power, whereas a transformer only increases voltage.
How is current amplified in a transistor?
Transistor increase the strength of a weak signal from the base
What amplifies sound waves by as much as 20 times their original intensity?
A microphone and an amplifier with a loudspeaker does this. The microphone converts the soundpressure to electric signals. The amplifier amplifies these signals and the loudspeaker converts back the electric signals to sound pressure. Our ear drums are moved by the sound pressure as a sound field quantity. It is not the sound intensity as an energy quantity.
What is the function of emitter bypass capacitor in common emitter amplifier?
The emitter bypass capacitor in a common emitter amplifier will have less resistance as the frequency increases. Since gain in this configuration is collector resistance divided by emitter resistance (within limits of hFe), the gain will thus increase for higher frequencies, making this into a high pass filter.
What is a cross coupled transistor?
A cross coupled transistor pair are used to increase the gain of the cell.
