why electric current is a scaler quantity still it requires direction?

Asked by devangi meena | 15th May, 2013, 04:02: PM

Expert Answer:

Current is equal to the rate of flow of charge and since both charge and time are scaler quantities, current is also a scaler quantity. Furthermore, we can't define any angle with the current when we define its direction unlike what we do for the vector quantities. So, even though a direction is defined in the case of current, it is just defined as opposite to the flow of electrons and can't really be define in terms of i, j and k unit vectors or in terms of the angles it makes with these unit vectors. 

Answered by  | 15th May, 2013, 07:48: PM

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