Which statement is true about large electrodes in an electrode setup?

Large electrodes in an electrode setup are designed to disperse electrical current over a larger area of skin, which helps reduce the current density at any given point. This is beneficial because it minimizes the risk of skin irritation and discomfort that can occur when current is concentrated in a smaller area. By spreading the current out, large electrodes can also provide a more uniform stimulation of the underlying tissues, making them effective for therapeutic modalities such as electrical stimulation or transcutaneous electrical nerve stimulation (TENS).

The use of large electrodes is particularly advantageous in settings where broad muscle groups need to be targeted or when treating larger areas of the body, as the wider contact area allows for a more even distribution of electrical energy. This characteristic enhances patient comfort and the therapeutic effectiveness of the treatment.