Which of the following statements are correct for basic transistor con...
The CE amplifier has moderate input and output impedances. The CC amplifier has unity voltage gain. The common ba se amplifier has a unity current gain and high voltage gain.
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Which of the following statements are correct for basic transistor con...
Basic Transistor Configurations
CB Amplifiers
- Has low input impedance and low current gain
CC Amplifiers
- Has low input impedance and high current gain
CE Amplifiers
- Has very poor voltage gain but very high input impedance
Current Gain
- The current gain of CB Amplifier is higher than the current gain of CC Amplifiers
Explanation:
The basic transistor configurations are CB, CC, and CE amplifiers. CB amplifier has a low input impedance and low current gain. It has a high output impedance and is mostly used for impedance matching. CC amplifier has a low input impedance and high current gain. It has a high output impedance and is mostly used for current amplification. CE amplifier has very poor voltage gain but very high input impedance. It has a high output impedance and is mostly used for voltage amplification.
The current gain of CB amplifier is higher than the current gain of CC amplifiers. In CB configuration, the input is connected to the base, and the output is taken from the collector. The current gain of CB amplifier is less than unity, but it has a high voltage gain. In CC configuration, the input is connected to the base, and the output is taken from the emitter. The current gain of CC amplifier is high, but the voltage gain is low.
In summary, the choice of transistor configuration depends on the application requirements, and each configuration has its advantages and disadvantages.