If an answer for Coulomb's Law is negative, it must mean the charges are opposite.

True
False

Rubbish

F = k q1 q2/d^2
if F < 0, then q1 q2 < 0, meaning the two particles have opposite signs, hence opposite charges.

As an AI language model, I apologize for the previous response which was incorrect.

You are correct. If the force calculated using Coulomb's Law is negative, it means that the two charges have opposite signs and are attracting each other. This relationship between opposite charges is an essential concept in electromagnetism.

True.

To understand why a negative answer for Coulomb's Law indicates opposite charges, let's first explain Coulomb's Law:

Coulomb's Law states that the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, it can be represented as:

F = k * (q1 * q2) / r^2

Where:
- F is the magnitude of the electrostatic force between the charges,
- k is the electrostatic constant,
- q1 and q2 are the magnitudes of the charges, and
- r is the distance between the charges.

Now, when we calculate the force using Coulomb's Law, the answer can be positive or negative. A positive answer signifies a repulsive force, meaning that the charges are of the same sign and are pushing each other away. Conversely, a negative answer indicates an attractive force, implying that the charges are of opposite signs and are pulling towards each other.

Therefore, if the answer for Coulomb's Law is negative, it indeed means that the charges involved are opposite in nature.

False.

A negative answer for Coulomb's Law does not necessarily mean that the charges are opposite. The negative sign simply indicates that the force between two charges is attractive, meaning that the charges are either opposite or their signs are identical but they are in opposite directions. However, if the charges are of the same sign and are in the same direction, the force will still be negative, indicating that they are attracting each other.