Which of the following is NOT one of the effects that electrical energy can produce?

In the context of electrical energy effects, heat, light, and pressure are all commonly associated with the transformation of electrical energy. When an electric current passes through a conductor, it generates heat due to resistance, which is a key principle in electric heating. Light is produced by electrical energy in devices such as light bulbs or LEDs, where electrical energy is converted into light energy. Pressure can be created in devices like piezoelectric sensors, which generate an electric charge in response to mechanical stress.

Sound, while it can be produced by electrical means (for example, speakers converting electrical energy into sound waves), is not an inherent effect of electrical energy itself as the other effects are. Rather, sound is a secondary effect created when electrical energy influences materials that can vibrate to produce sound. Therefore, sound is less directly tied to the fundamental effects typically discussed in relation to electrical energy. This distinction helps clarify why sound is not considered one of the primary effects of electrical energy.