High sensitivity of a piezoelectric transducer:
Piezoelectric transducers are known for their high sensitivity in converting mechanical stress into electrical signals. This sensitivity is due to the unique property of piezoelectric materials to generate an electric charge in response to applied mechanical force.

Explanation:
- When mechanical stress is applied to a piezoelectric material, it causes a displacement of the positive and negative charges within the material, resulting in the generation of an electric potential.
- This electric potential can be measured and converted into an electrical signal, making piezoelectric transducers ideal for applications where high sensitivity is required.
- The high sensitivity of piezoelectric transducers allows them to accurately detect even small amounts of mechanical stress or vibration, making them valuable in various fields such as sonar, medical imaging, and industrial monitoring.

Importance of high sensitivity:
- The high sensitivity of piezoelectric transducers enables them to detect subtle changes in mechanical stimuli, making them essential for applications that require precise measurements.
- This sensitivity also allows for the detection of low-level signals in noisy environments, ensuring reliable and accurate data collection.
In conclusion, the high sensitivity of a piezoelectric transducer is a key characteristic that sets it apart from other types of transducers and makes it a valuable tool for a wide range of applications.