Circle the False statement(s) below. As the temperature of a metal, for example

Question

Circle the False statement(s) below. As the temperature of a metal, for example copper, is lowered the resistivity actually decreases. As the temperature of a nonmetal, for example a ceramic material, is lowered the resistivity actually decreases. If a piece of silicon is "doped" with the appropriate element it becomes useless and is referred to as "dopey" material. A superconductor is a material that loses its electrical resistance below a certain temperature referred to as the critical temperature. If a small amount of certain elements is added to an insulating material the electrical properties of insulating material may be changed significantly.

Explanation / Answer

False statements are

b) As the temperature of a nonmetal, for example ceramic material , is lowered the resistivity actually decreases.

c) If a peice of silicon is doped with appropriate element it becomes useless and it referred to as ''dopey'' material.

e) If a small amount of certain elements is added to an insulating material the electrical properties of insulating material may be changed significantly.

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