3. Which of these explains how the principle of conservation of charge applies when a charged object is grounded? A. Electrons are created or destroyed. B. Electrons flow to or from the ground to neutralize the object'charge. C. Protons flow to or from the ground to neutralize the object's charge. D. The object's charge remains unchanged.

## Step 1<br />The principle of conservation of charge states that the total charge in an isolated system remains constant. This means that charge cannot be created or destroyed, only transferred from one object to another.<br /><br />## Step 2<br />When a charged object is grounded, it means that the object is connected to the ground, which is considered an infinite reservoir of charge. <br /><br />## Step 3<br />The excess charge on the object will flow to the ground until the object is neutralized. This is because the ground is considered to have an infinite supply of charge, and the object's excess charge will be neutralized by the ground.<br /><br />## Step 4<br />The flow of charge is due to the movement of electrons, not protons. This is because electrons are the charge carriers in this context. Protons are located in the nucleus of an atom and do not move freely.<br /><br />## Step 5<br />The object's charge does not remain unchanged when it is grounded. Instead, the excess charge on the object is neutralized by the ground.