When Introduced into a Region Where an Electric Field Is

question 21

Multiple Choice

When introduced into a region where an electric field is present, a proton with initial velocity will eventually move

• A) along an electric field line, in the positive direction of the line.
• B) along an electric field line, in the negative direction of the line.
• C) to a point of decreased potential.
• D) as described in both (a) and (c).

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Definitions:

Validity

The extent to which a test or instrument measures what it claims to measure.

Reliability

How much a testing tool generates consistent and stable outputs over various times.

Validity

Refers to the extent to which a concept, conclusion or measurement is well-founded and likely corresponds accurately to the real world.

Accuracy

The degree to which a measurement or estimation matches the true value or standard.