5 Questions
Define the term 'amplify' in the context of electronics engineering.
To make the voltage or current of the input signal larger without changing the shape of the signal.
What is the purpose of an amplifier?
To increase the magnitude of a signal without changing its shape or introducing new information.
What is considered undesirable in the output signal of an amplifier?
Any change in waveform, also known as distortion.
How is the amplifier circuit described when the input and output quantities are voltages?
By its voltage gain.
Name one type of transistor that can be used as an amplifier.
BJT (Bipolar Junction Transistor).
Study Notes
Amplifier
- Amplify means to make the voltage or current of the input signal larger without changing the shape of the signal.
- An amplifier is a device used for the amplification process.
- The output signal of the amplifier should be an exact replica of the input signal, except for having a larger magnitude.
- Any change in waveform is considered as distortion and is undesirable.
Amplifier Gain
- Voltage gain describes an amplifier circuit when the input and output quantities are voltages.
- Current gain and Power gain can also be used to describe an amplifier circuit.
- BJT (Bipolar Junction Transistor) can be used as an amplifier in different configurations.
Test your knowledge on the basics of amplifier circuits in electronics engineering. This quiz covers topics such as voltage and current amplification, signal shape preservation, and more. Perfect for students studying electronics and communication engineering.
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