0
Why does ce configuration provide large current amplification while the cb configuration does not?
The common emitter (CE) configuration provides large current amplification because it utilizes a small base current to control a much larger collector current, resulting in a significant current gain (β). In contrast, the common base (CB) configuration does not offer the same level of amplification since it is designed for high-frequency applications and has a lower input impedance, which leads to a smaller output current relative to the input. Additionally, the CB configuration does not allow for the same degree of control over the collector current by the base current as the CE configuration does.
What else can I help you with?
Why more current amplification in common emitter?
A bipolar transistor can be used in different configurations in linear electronic design. Most well known is the common emitter CE configuration with a base current as input signal resulting in a collector signal multiplied by the current gain factor. The second configuration is known as the emitter follower or common collector configuration. Here the input signal is in the form of a voltage between the base and the common connection. The output signal is found in the form of a voltage at the emitter with a relative low output impedance. The voltage swing at the input is almost as large at the output where the input impedance equals the product of the current gain factor and the emitter resistance. The third configuration is known as common base CB. Here the input current at the emitter almost equals the output current at the collector. The current gain is nearly equal to 1.
Why CC configuration is preferred for buffering?
it is noninverting and while it gives no voltage gain it gives a large current gain.
Why use 16mm cable for earthing?
A large cable for earthing is to allow for the possibility of a very large current which would melt a smaller one thus removing the protection it is supposed to provide.
How do transistors amplify weak signal?
A transistor controls the flow of current between the emitter and collector. The larger current is supplied by the power supply, across the emitter and collector. The flow is then controlled by a small current applied to the base connection. So, a large current flow mimics the small signal current. Limits are reached, when the transistor gets close to being fully switched on or off. This will cause distortion. To avoid this, more amplification is provided by a series of transistor amplifiers, one after the other.
What is designed to use a small current to control a large current?
A silicon controlled rectifier falls into this category.
How current amplification is occur in a transistor?
A: Vacuum tubes are current amplifiers transistors are voltage amplifier. The voltage drop across the collector resistor causes amplification since very little current in the base will change a large current in the collector.
Why can a PNP transistor be used as a power amplifier if it is connected into a circuit in a manner such as that shown in the book Electricity and Electronics Figure 52?
A PNP transistor can be used as a power amplifier in a circuit because it can handle high power levels and provide amplification by controlling a large current with a small input signal. In Figure 52, the PNP transistor is configured in a common emitter configuration, allowing it to amplify the input signal by controlling the current flowing through the load connected to its collector terminal. The transistor acts as a switch that modulates the output current based on the input signal, providing amplification of power.
Why more current amplification in common emitter?
A bipolar transistor can be used in different configurations in linear electronic design. Most well known is the common emitter CE configuration with a base current as input signal resulting in a collector signal multiplied by the current gain factor. The second configuration is known as the emitter follower or common collector configuration. Here the input signal is in the form of a voltage between the base and the common connection. The output signal is found in the form of a voltage at the emitter with a relative low output impedance. The voltage swing at the input is almost as large at the output where the input impedance equals the product of the current gain factor and the emitter resistance. The third configuration is known as common base CB. Here the input current at the emitter almost equals the output current at the collector. The current gain is nearly equal to 1.
Why CC configuration is preferred for buffering?
it is noninverting and while it gives no voltage gain it gives a large current gain.
What did amplification do for muddy waters guitar?
it gave him the ability to be heard in a large room and to be heard along with his band members
Why is an amplification system needed in a large auditorium but not typically used in a classroom?
An amplification system is needed in a large auditorium to ensure that sound can be heard clearly by everyone in the space due to the larger area and more dispersed audience. In a classroom, the smaller size allows for better acoustics and natural sound projection, making amplification unnecessary for most situations.
Why use 16mm cable for earthing?
A large cable for earthing is to allow for the possibility of a very large current which would melt a smaller one thus removing the protection it is supposed to provide.
Why CE configuration is most common?
CC gives only current gain, but no voltage gain; gives only limited power gainCB gives only voltage gain, but no current gain; gives only limited power gainCE gives both voltage and current gain; gives large power gain
How do transistors amplify weak signal?
A transistor controls the flow of current between the emitter and collector. The larger current is supplied by the power supply, across the emitter and collector. The flow is then controlled by a small current applied to the base connection. So, a large current flow mimics the small signal current. Limits are reached, when the transistor gets close to being fully switched on or off. This will cause distortion. To avoid this, more amplification is provided by a series of transistor amplifiers, one after the other.
What is the use of transistor in water level indicator?
It is used to amplify the current. The common-emiiter amplifier is designed so that a small change in voltage (Vin) changes the small current through the base of the transistor; the transistor's current amplification combined with the properties of the circuit mean that small swings in Vin produce large changes in Vout. Various configurations of single transistor amplifier are possible, with some providing current gain, some voltage gain, and some both.
Why a motor starts in star and runs in delta?
This configuration is used to reduce the starting current. Utility companies do not like large motor loads starting across the line. It dips the voltage level of the line. By reducing the starting current to a lower level also reduces the voltage dip in the supply lines.
Who was the writer of CFEngine?
CFEngine is a popular configuration management system that provides maintenance and configuration for large scale computer systems. The writer of the CFEngine is Mark Burgess.
