In models of magnetic and electric fields, why are field vectors depicted by arrows?

because they represent both their magnitude and direction.
because they represent a parameter that is neither their magnitude nor direction
because they represent their direction, but not their magnitude.
because they represent their magnitude, but not their directio

n.

Field vectors are depicted by arrows because they represent both their magnitude and direction. Arrows are a common way to visually represent vectors, with the length of the arrow indicating the magnitude of the vector and the direction of the arrow indicating the direction of the vector. This allows for a clear and intuitive representation of the field vectors in models of magnetic and electric fields.