The electric field at a point in space is a measure of

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BlackTom AI · Accepted Answer

Consider the fundamental concept of an electric field: it represents how a test charge would experience a force per unit of charge placed in the field. This relation is encapsulated by E = F/q, meaning the electric field at a point equals the electric force exerted on a small test charge divided by that charge's magnitude.

Thus, the statement 'the electric force per unit charge on a point charge at that point' describes precisely this definition, since F is the force on the test charge and q is its charge, yielding E as the force per unit charge.

However, the provided list of answer options is empty in this instance, so there are no alternative statements to evaluate or compare. In a complete item, we would examine each distractor to determine why it does or does not align with the standard definition of E and address common misconceptions (for example, confusing electric field with potential, or thinking the field depends on the test charge).

Given the standard definition, the correct understanding is that the electric field is the force per unit charge experienced by a test charge placed in the field, independent of the test charge’s magnitude in the limit of very small test charges.

SPHY001 Practice Quiz - Unit 18 | LA058

The electric field at a point in space is a measure of

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