A mandatory characteristic of a pure...

Question 1 / 270705eccefa5bacbc34ba4d48814

Question 1 of 270705eccefa5bacbc34ba4d48814

A mandatory characteristic of a pure amplifier is that __________.

Question 1 of 27070

A mandatory characteristic of a pure amplifier is that __________.

🔍 Key Concepts

• pure amplifier versus controller (proportional, integral, derivative) • relationship between input energy form and output energy form in an amplifier • meaning of gain (ratio of output to input) and whether it must always be > 1

💭 Think About

• Is a pure amplifier defined by how big the output is compared to the input, or by the type of operation it performs on the signal? • Think about whether an amplifier can ever have a gain less than one at some frequencies or conditions, and still be called an amplifier overall. • Consider whether a pure amplifier is supposed to change only the size of a signal, or also its physical nature (for example, electrical to mechanical).

✅ Before You Answer

• Check which option describes something that must always be true for a pure amplifier, not just sometimes true. • Verify which statement correctly describes the form of energy between input and output for a pure amplifier. • Distinguish between an amplifier (changes magnitude of a signal) and controllers (integral or derivative actions), and eliminate any answers that sound like controller behavior.

Question 1 of 27070

A mandatory characteristic of a pure amplifier is that __________.

the form of the input and output energies must be the same

the ratio of the output to the input must always be greater than the numerical value of 'one'

the form of the input and output energies must be different

the action must be either integral or derivative

Question 1 / 270705eccefa5bacbc34ba4d48814

Question 1 of 270705eccefa5bacbc34ba4d48814

A mandatory characteristic of a pure amplifier is that __________.

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Question 1 of 27070

A mandatory characteristic of a pure amplifier is that __________.