Bennett Mechanical Comprehension Practice Test 2025 - Free Practice Questions and Review Guide

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Question: 1 / 400

Which of the following is a vector quantity?

Voltage

Current

The correct answer, current, is considered a vector quantity because it has both magnitude and direction. In electrical circuits, current flows from a higher potential (voltage) to a lower potential, which means it inherently involves movement through space in a particular direction. This directionality is a key characteristic of vector quantities, which are defined as having both size and direction.

In contrast, voltage is a scalar quantity representing electric potential difference without a specific directional component, resistance measures how much a material opposes the flow of current and is also a scalar, while temperature, which measures thermal energy, is similarly a scalar quantity since it does not have a directional aspect. Understanding that current's nature of flowing through circuits with direction distinguishes it clearly as a vector quantity within this context.

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Resistance

Temperature

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