A Light Bulb Is Connected in the Circuit Shown in the Figure

question 12

Multiple Choice

A light bulb is connected in the circuit shown in the figure with the switch S open and the capacitor uncharged. The battery has no appreciable internal resistance. Which one of the following graphs best describes the brightness B of the bulb as a function of time t after closing the switch?

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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Definitions:

Kuder-Richardson Reliability

A measure of the consistency of test scores across items within a test, commonly used to assess the reliability of dichotomously scored tests.

Content Validity

The extent to which a test measures all facets of the concept it intends to assess.

Construct Validity

The extent to which a test or instrument measures the theoretical construct or concept it is intended to measure.

Concurrent Validity

The degree to which the results of a test correlate with the results of an established test measuring the same construct at the same time.