# Why is electric current not a vector quantity?

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It represents the direction of flow of positive charge but it is treated as a scalar quantity because current follows the laws of scalar addition and not the laws of vector addition, because the angle between the wires carrying current does not affect the total current in the circuit.

## Why is electric current a vector?

Note: Current is a vector because it has a magnitude and a direction. … Since current doesn’t obey it and it follows algebraic addition, currents are scalar. Also, current is written as the dot product of the current density vector and the area vector. Cgs unit is biot.

## Why electric current is not considered as vector quantity though it can be expressed as in the form direction and magnitude both?

Current isn’t a vector quantity even if it has both magnitude and direction. This is because according to the defination of vector, “Any measurable quantity that has both magnitude and direction and can be added by triangle law of vector addition is called a vector”.

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## Why electric current is neither scalar nor vector quantity?

Class 10 Question. Electric current is a scalar quantity. … In the case of electric current, when two currents meet at a junction, the resultant current of these will be an algebraic sum and not the vector sum. Therefore, an electric current is a scalar quantity although it possesses magnitude and direction.

## Is electric current scalar or vector quantity explain?

Electric current is a scalar Quantity. , Physics enthusiast. Vectors are defined as those that have magnitude and direction. And for this reason electric current should be considered a vector as it has both magnitude and direction.

## Is electric current a tensor quantity?

So yes, the electric current is a tensor model, but only for the induced part, not the driving part. The distribution of vector fields needs surfaces to exist.

## Is electric current a derived quantity?

The units of a derived physical quantity are called derived quantity. … Examples of fundamental quantity are mass, length, electric current, temperature, amount of substance, and luminous intensity. Area, speed, velocity, etc are examples of the derived physical quantity.

## Why current does not obey vector law of addition?

To be precise, current is not a vector quantity. Although current has a specific direction and magnitude, it does not obey the law of vector addition.

## Why electric current is a fundamental quantity?

Current is fundamental quantity because it can be measured more easily than counting the charges. We can measure current using instruments (Ammeter) but charges can’t be counted so easily. A fundamental quantity must be easy to measure therefore we use electric current as a fundamental quantity instead of charge.

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## Why current is a scalar quantity Quora?

Scalar quantity are those quantities which have only magnitude not any direction and they can be added algebrically. While vector quantities have both magnitude and direction and they must be added vectorically. Since, current has direction but it is not added vectorically. So, it is a scalar quantity.

## Why current is scalar and current density is vector?

The current is a scalar quantity. … Current density is a vector quantity because it’s a product of charge density and velocity, here charge density is a scalar quantity and velocity is a vector quantity, which makes current density also a vector quantity.