Name the type of component that has a greater resistance as the current through it increases.

The type of component that has a greater resistance as the current through it increases is known as a nonlinear resistor or, more specifically, a positive temperature coefficient (PTC) thermistor.

In PTC thermistors, when the current increases, so does the temperature of the component. As the temperature rises, its resistance also increases, which can be useful in applications like overcurrent protection. Typically, PTC thermistors exhibit a distinctive characteristic where the resistance increases with temperature, leading to reduced current flow if the current exceeds a certain threshold. This behavior is quite different from linear components, such as resistors that maintain constant resistance regardless of the current flowing through them.