What would happen to mass if the body is negatively charged ?

Options

A. Increases.
B. Decreases.
C. Remains Same.
D. It decreases and reaches zero.

Explanation

To solve the question of what happens to the mass of a body when it becomes negatively charged, we can follow these steps:

### Step 1: Understand the Initial Condition
Assume we have a neutral body with an initial mass denoted as \( M \).

**Hint:** Consider what it means for a body to be neutral in terms of charge.

### Step 2: Adding Electrons
To make the body negatively charged, we need to add electrons. Let's say we add \( n \) electrons to the body. Each electron has a charge of \( -e \) (where \( e \) is the elementary charge).

**Hint:** Recall the definition of negative charge and how it relates to the addition of electrons.

### Step 3: Calculate the Change in Mass
The mass of one electron is approximately \( m_e \). Therefore, if we add \( n \) electrons, the increase in mass due to these electrons will be \( n \times m_e \).

**Hint:** Think about how mass is additive when combining different objects or particles.

### Step 4: Determine the New Mass
The new mass of the body after adding the electrons will be:
\[ \text{New Mass} = M + n \times m_e \]
This means that the mass of the body increases by the mass of the added electrons.

**Hint:** Consider how the total mass changes when additional particles are added to a system.

### Step 5: Conclusion
Since the mass of the body increases due to the addition of electrons, we conclude that when a body becomes negatively charged, its mass increases.

**Final Answer:** The mass of the body increases when it becomes negatively charged.