In an op-amp, what describes a Non-Inverting Op Amp?

A Non-Inverting Op Amp is characterized by its ability to amplify the input signal without inverting its phase. This means that the output voltage is in phase with the input voltage, resulting in the same sign for both. When a positive input signal is applied, the output will also be positive, and vice versa for negative inputs. This property is crucial in applications where the original signal phase must be preserved.

In the context of the other options, while a feedback loop is indeed required for proper operation and amplification in an op-amp configuration, it is not an exclusive characteristic of the non-inverting configuration specifically. The statement about having no inputs is incorrect because an op-amp must have inputs to function. Also, the idea that it amplifies the signal by inverting it directly contradicts the fundamental operation of a non-inverting amplifier, reinforcing that option as inaccurate.