The strength of the resistance in a circuit element depends on the element's:

1. Different materials oppose current to different degrees. 2. The current in a circuit is resisted by the elements of the circuit. 3. The strength of the resistance depends on the material of the elements. 4. That is why wires and heating elements are made of different metals. _Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 20 'Electric Current, Resistance, and Ohm's Law', sections 20.1-20.7_