The Circuit Below Contains Three 100-W Light Bulbs

question 47

Multiple Choice

The circuit below contains three 100-W light bulbs. The emf ε = 110 V. Which light bulb(s) is(are) brightest?

• A) A
• B) B
• C) C
• D) B and C
• E) All three are equally bright.

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Definitions:

Valid Test

A test that accurately measures what it is intended to measure, demonstrating reliability and relevance to the specific purpose for which it is used.

Barnum Effect

The tendency for people to believe vague, positive statements about themselves.

Intercoder Reliability

Occurs when people coding stories or written material agree, using a set of rules, that it meets certain criteria.

Test-Retest Reliability

The consistency of a measure or test over time when administered to the same individuals on two occasions.