Electric field

 Q: What is an electric field?


A: An electric field is a region of space surrounding a charged object, where another charged object experiences a force. It is a vector field, meaning it has both magnitude and direction.


Q: How is the strength of an electric field measured?


A: The strength of an electric field (\(E\)) is measured in volts per meter (V/m). It represents the force experienced by a unit positive charge at a particular point in space.


Q: What is the relationship between electric field strength and distance from a charged object?


A: The electric field strength is inversely proportional to the square of the distance from the charged object. Mathematically, \(E \propto \frac{1}{r^2}\), where \(r\) is the distance from the charge.


Q: How does an electric field influence charged particles?


A: Charged particles experience a force when placed in an electric field. Positive charges move in the direction of the field, while negative charges move opposite to the field direction.


Q: How can the direction of an electric field be determined?


**A:** The direction of the electric field at a point is the direction in which a positive test charge would experience a force if placed at that point. The field lines point outward from positive charges and toward negative charges.

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