What is a measure of how much work is needed to move a charge from one point to another?A amperageB resistanceC electric currentD voltage

Break Down the Problem

1. Identify the concept being asked about, which is related to electric charge and work done.
2. Examine the options provided to determine which one represents the measure of work needed to move a charge.

Relevant Concepts

• The measure of work done (or energy) in moving a charge in an electric field is known as voltage. It is defined as the electric potential difference between two points.

Analysis and Detail

• A. Amperage: This refers to the amount of electric current flowing, but does not measure work.
• B. Resistance: This is a measure of how much a material opposes the flow of electric current; it is not a measure of work.
• C. Electric Current: This is the flow of electric charge but does not quantify energy or work.
• D. Voltage: This directly measures the work done per unit charge to move it from one point to another.

Verify and Summarize

At this point, we confirm that voltage (Option D) is indeed the correct answer, as it quantifies how much work is required to move charge within an electric field.

Final Answer

D: Voltage.