A Certain Wire Has Resistance R

question 30

Multiple Choice

A certain wire has resistance R.Another wire, of the same material, has half the length and half the diameter of the first wire.The resistance of the second wire is:

• A)R/4
• B)R/2
• C)R
• D)2R
• E)4R

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Definitions:

Extinction

In psychology, the process through which a conditioned response decreases or disappears after the conditioned stimulus is repeatedly presented without the unconditioned stimulus.

Higher-order Conditioning

A learning process in which a stimulus that was previously neutral is paired with a conditioned stimulus to produce the same conditioned response as the original conditioned stimulus.

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention, until it is associated with an unconditioned stimulus.

Spontaneous Recovery

The reappearance of conditioned responses after a period of rest and without further conditioning.