Which of these statements about resistance is true? a. resistance is a material-independent property. b. the resistance of metals increases with temperature. c. the resistance increases as the current decreases. d. the resistance of an insulator is less than that of a conductor.

The answer is C. The resistance increases as the current decreases.

Explanation:

The resistivity of conductors, semiconductors, and insulators depend on temperature. The resistivity of good conductors increases with an increase in temperature. They have a positive temperature coefficient. At high temperatures, atoms in good conductors like copper vibrate more rapidly and electrons make more collisions, making the resistivity higher.

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given the options, i would say your best bet is c. the modem supports up to 56 kbps, which is too low for video streaming. dial up modems use actual phone lines, which only can go up to 56 kbps as that's more than sufficient for traditional phone calls. this is also the reason why when a dial-up modem connects, you hear all those sounds. it's literally using the phone line to establish a connection.