makes it bigger! (or sometimes smaller, or sometimes the same, but with lower output impedance)
amplifier will strengthen da small input signal n amplifies it
An amplifier amplifies the small input signal to a high signal without changing its freqency.
Small signal amplifier is needed because it is used for amplifying input signals having low frequency or amplitude.
As the name suggests, it amplifies a small signal. It ususally has a very high input impedance, to avoid affecting the source signal.
Small signal amplifiers are generally referred to as "Voltage" amplifiers as they convert a small input voltage into a much larger output voltage.
To amplify a signal, an amplifier must be supplied with a power source, which provides the necessary energy to increase the amplitude of the input signal. Additionally, the amplifier needs a suitable input signal that it can process. The amplifier's design and gain settings determine how much the output signal will be increased relative to the input.
1.Small signal amplifier can be designed easily using s parameter while large signal amplifier not.
Amplifiers are electronic device that responds to a small input signal (voltage, current, or power) and delivers a larger output signal.
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An amplifier is both an input and output device. An amplifier, as its name suggests, amplifies a signal, meaning that it makes it stronger. An amplifier takes something as input, like maybe a sound signal, and its output is a more powerful (or louder) version of the same signal.
The amplifier that uses the base as the reference terminal for the input and output signal is the common-base amplifier. In this configuration, the input signal is applied to the emitter, while the output is taken from the collector. The common-base amplifier is known for its high frequency response and low input impedance, making it suitable for specific applications such as radio frequency amplification.
Answer is GAIN