Which of these can be electrostatic field functions?

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2 xy + x^{2} j

x^{2} i + 2 xyj

xj + yk

x^{2} j + yk

answer is B.

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Detailed Solution

Concept: The accumulation of charge on an object's surface as a result of contact with other surfaces is referred to as electrostatics.
Electrostatic field: An electrical field, or E-field as it is frequently referred to, surrounds an electrical force and attracts or repels other charges in the field. Magnetic fields or electric charges that change over time produce electrical fields. Both magnetic and electric fields are examples of electromagnetic force. One of the four basic natural forces, they (or interactions). Electrical fields play a significant role in many branches of physics and are fundamental to electrical technology. The attraction between the atomic nucleus and electrons that holds atoms together and the forces that result in chemical bonding between atoms are both caused by the electric field at the atomic level.
The force (per unit charge) that would be felt if a modest positive test charge were retained at a certain location in space is known as the electric field at that location. An electric field is accompanied by a vector field because force, which has magnitude and direction, determines the electric field. The vector fields of this form are frequently referred to as strength fields. Since both follow the opposite-square law of distance, the electric field operates between two quantities, or charges, much like the gravitational field does.
Function of the electrostatic field