Operational amplifier (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
In an inverting amplifier, where is the output voltage fed back to?
In an inverting amplifier, where is the output voltage fed back to?
The inverting input
What is the main purpose of negative feedback in an inverting amplifier configuration?
What is the main purpose of negative feedback in an inverting amplifier configuration?
Stabilises the output
Which resistor is connected between the output and the inverting input?
Which resistor is connected between the output and the inverting input?
What is meant by 'virtual earth' in an inverting amplifier?
What is meant by 'virtual earth' in an inverting amplifier?
Inverting input is close to V
In an ideal op-amp inverting configuration, what voltage is the non-inverting input at?
In an ideal op-amp inverting configuration, what voltage is the non-inverting input at?
V (grounded)
What is the gain formula for an inverting amplifier?
What is the gain formula for an inverting amplifier?
What does the negative sign in the gain equation indicate?
What does the negative sign in the gain equation indicate?
Inversion of input signal polarity
What is the phase difference between input and output voltages in an inverting amplifier?
What is the phase difference between input and output voltages in an inverting amplifier?
What advantage does the inverting configuration offer compared to non-inverting?
What advantage does the inverting configuration offer compared to non-inverting?
Lower distortion
Where are inverting amplifiers commonly used?
Where are inverting amplifiers commonly used?
Audio processing & signal conditioning