Jadeen Says That You Can Increase the Resistance of a Copper

question 9

Multiple Choice

Jadeen says that you can increase the resistance of a copper wire by hammering the wire to make it narrower and longer. Arnell says that you can increase its resistance by heating the wire. Which one, if either, is correct, and why?

• A) Arnell, because the conductivity of the wire increases when it is heated.
• B) Arnell, because the conductivity of the wire decreases when it is heated.
• C) Jadeen, because the conductivity of a wire is directly proportional to its area and inversely proportional to its length.
• D) Jadeen, because the conductivity of a copper wire does not increase when it is hammered.
• E) Both are correct because (b) and (d) are both correct.

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Definitions:

Transference

In psychoanalysis, the process by which emotions and desires originally associated with one person are unconsciously transferred to another person.

Family-Systems Perspective

An approach to doing therapy with individuals or families by identifying how each family member forms part of a larger interacting system.

Dysfunctional Families

Family units that have unhealthy patterns of behavior and relationships, often leading to emotional and psychological problems for members.

Behavior

The actions or reactions of an object or organism, usually in relation to the environment or stimuli.