What term refers to the body's reaction when exposed to an electric current?

The term that describes the body's reaction when exposed to an electric current is "shock." This phenomenon occurs because the electric current can disrupt the normal electrical signals in the body, potentially leading to symptoms such as pain, muscle contractions, or even more severe reactions depending on the current's intensity and the duration of exposure.

Understanding electric shock is critical in agricultural technology and mechanical systems, as workers may encounter electrical systems and equipment that pose risks if not handled properly. Knowledge of how electric shock happens helps in recognizing safety protocols and emergency responses, ensuring a safer work environment.

The other options refer to different concepts: grounding is a method used to direct stray electricity safely into the earth, transformers are devices that change the voltage of electricity, and fuses are protective devices that interrupt electric circuits when currents exceed safe levels. While each plays a role in managing electricity, they do not pertain directly to the body's reaction to electric currents.