Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Which of the following is vector quantity
Text Solution
Verified by ExpertsThe correct answer is:
A
Vector and Scalar Quantities Explained:
In physics, quantities can be classified as either vector quantities or scalar quantities.
Therefore, the only vector quantity among the options provided is Current Density. Hence, the correct answer is Option A.
In physics, quantities can be classified as either vector quantities or scalar quantities.
- Vector Quantity: A quantity that has both magnitude and direction. Examples include velocity, force, and current density.
- Scalar Quantity: A quantity that has magnitude only and no direction. Examples include mass, temperature, and energy.
- Option A: Current Density - This is defined as the amount of electric current flowing per unit area. It has both magnitude (amount of current) and direction (the direction in which current flows), making it a vector quantity.
- Option B: Current - This is a scalar quantity as it only measures the amount of electric charge flowing per unit time without a specific direction in its basic form.
- Option C: Wattless Current - This term typically refers to certain types of alternating current that do not do any real work (do not produce power) and is still a scalar quantity.
- Option D: Power - It is defined as the rate at which work is done or energy is transferred and is a scalar quantity that measures only magnitude.
Therefore, the only vector quantity among the options provided is Current Density. Hence, the correct answer is Option A.
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