What kind of electric field has equal strength throughout?

What kind of electric field has equal strength throughout?

• A. Nonuniform field
• B. Gravitational field
• C. Uniform field
• D. Radial field

Answer: (C)

A uniform electric field has the same strength everywhere in the region, and its direction is constant. This occurs between two large parallel plates with opposite charges, where the field lines run straight and are evenly spaced, making the magnitude E essentially constant (E = V/d) throughout the area between the plates. In such a field, a test charge experiences the same force per unit charge no matter where it is in that region. Nonuniform fields have varying strength and/or direction across space, such as a radial field where the strength changes with distance from the source (typically decreasing with 1/r^2). The gravitational field concept is a different kind of field and isn’t the electric field being described here. So the kind of electric field with equal strength throughout is a uniform field.

A uniform electric field has the same strength everywhere in the region, and its direction is constant. This occurs between two large parallel plates with opposite charges, where the field lines run straight and are evenly spaced, making the magnitude E essentially constant (E = V/d) throughout the area between the plates. In such a field, a test charge experiences the same force per unit charge no matter where it is in that region.

Nonuniform fields have varying strength and/or direction across space, such as a radial field where the strength changes with distance from the source (typically decreasing with 1/r^2). The gravitational field concept is a different kind of field and isn’t the electric field being described here. So the kind of electric field with equal strength throughout is a uniform field.