Inverting and Non-Inverting Amplifiers Quiz

In an inverting amplifier, the input signal is applied to which pin of the op-amp?

• Non-inverting input

• Inverting input

• Output

• Offset null pin

In an ideal inverting amplifier, the input impedance is:

• Zero

• Equal to the feedback resistor

• Equal to the input resistor

• Infinite

The voltage gain of an inverting amplifier is given by:

• Rf/Rin​

• 1+(Rf/Rin​)

• −Rf/Rin​​

• −1

In an inverting amplifier, the phase difference between input and output signals is:

• 0°

• 90°

• 180°

• 270°

What is the role of the feedback resistor (Rf​) in an inverting amplifier?

• Determines input impedance

• Controls the gain

• Acts as a power supply

• Provides DC bias

In a non-inverting amplifier, the input signal is applied to which pin of the op-amp?

• Inverting input

• Non-inverting input

• Output

• Offset null pin

The voltage gain of a non-inverting amplifier is given by:

• Rf/Rin​

• 1+(Rf/Rin​)

• −Rf/Rin​​

• 1

In a non-inverting amplifier, the output signal is:

• Inverted with respect to the input

• In phase with the input

• Amplified by a factor of 2 only

• Always equal to the input

What is the phase difference between the input and output signals in a non-inverting amplifier?

• 0°

• 90°

• 180°

• 270°

If the feedback resistor (Rf​) and input resistor (Rin​) are equal in an inverting amplifier, the voltage gain is:

• +1

• -1

• 0

• Infinity