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A certain material has a resistivity of 7.8 *103 . m at room temperature and it increases as the temperature is raised by 100 C. The material is most likely:
Pens
Writing instruments used for applying ink to a surface, typically paper, for writing or drawing.
Pencils
Writing instruments consisting of a narrow, solid pigment core inside a protective casing that prevents the core from breaking or leaving marks on the user's hand.
Opportunity Cost
The cost of forgoing the next best alternative when making a decision or choosing one option over another.
Self-Employed Lawyer
A legal professional who operates their own legal practice rather than working as an employee for a law firm or corporation.
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