Final answer:
To ensure you do not get shocked by an incoming call, you should wear insulated shoes to prevent an electrical path to ground and work with one hand when dealing with electrical sources. A Faraday cage, such as a car during a storm, can also offer protection, and circuit breakers aid in home safety.
Step-by-step explanation:
To avoid getting shocked by an incoming call that can produce up to 90 volts of electrical current, it is important to understand the basics of electric shock prevention. Our bodies are conductive due to high water content, so to prevent an electrical path to ground, one effective safety precaution is wearing insulated shoes.
These shoes provide high resistance, hence blocking the flow of electricity through the body. Other safety measures include using one hand to work on electrical circuits to avoid creating a potential path across the heart and ensuring that you do not touch electrical sources when wet or standing in water, as this drastically reduces the body's resistance.
Current determines shock severity, which can be harmless for currents under 5 mA but dangerous above 10 mA. During electrical storms, it is safest to stay inside a metal-bodied car, which acts as a Faraday cage, protecting those inside from electrical fields. Moreover, fuses and circuit breakers helps to protect against electrical overloads, essential for household and larger-scale electrical safety.