Resistance and Resistivity: The figure shows a graph of the resistance of a wire as a function of its length. What physical quantities does the slope of this graph represent?
A. the cross-sectional area of the wire
B. the resistivity of the material of which the wire is made
C. the product of the resistivity and the cross-sectional area of the wire
D. the resistivity of the material divided by the cross-sectional area of the wire
E. the reciprocal of the resistivity of the material
Answer: D
You might also like to view...
The first law of thermodynamics is basically a special version of the law of ______________
Fill in the blank(s) with correct word
What are two advantages of CCDs over photographic films for astronomy?
What will be an ideal response?
A 1200-W toaster draws more current than a 1000-W toaster
Indicate whether the statement is true or false
The light radiated from the Sun's surface reaches Earth in about 8 minutes, but the energy of that light was released by fusion in the solar core about
A) a few hundred thousand years ago. B) 3 days ago. C) 100 years ago. D) 1,000 years ago.