The electric current passes through a metallic wire produces heat because of :

Options

A. collisions of conduction electrons with each other
B. collisions of the atoms of the metal with each other
C. the energy released in the ionization of the atoms of the metal
D. collisions of the conduction electrons with the atoms of the metallic wire

Explanation

To solve the question, "The electric current passes through a metallic wire produces heat because of:", we will analyze the options provided and explain the reasoning behind the correct answer step by step.

### Step-by-Step Solution:

1. **Understanding Electric Current in a Metallic Wire**:
- When an electric current flows through a metallic wire, it consists of conduction electrons moving through the lattice of metal atoms.

2. **Movement of Conduction Electrons**:
- The conduction electrons move towards the positive terminal of the power source. As they move, they gain energy and start to collide with the fixed atoms of the metallic wire.

3. **Collisions and Heat Generation**:
- These collisions between conduction electrons and the atoms of the metal cause the atoms to vibrate more vigorously. The increased vibration of atoms leads to an increase in thermal energy, which is perceived as heat.

4. **Evaluating the Options**:
- **Option 1**: Collisions of conduction electrons with each other - This is incorrect because collisions between conduction electrons do not produce heat.
- **Option 2**: Collision of atoms of the metal with each other - This is also incorrect because the atoms do not collide with each other; they vibrate in place.
- **Option 3**: The energy released in the ionization of the atom of the metal - This is incorrect as ionization does not occur during normal conduction and would not directly produce heat.
- **Option 4**: Collision of the conduction electrons with the atoms of the metallic wire - This is correct because these collisions lead to the generation of heat.

5. **Conclusion**:
- The correct answer is that the electric current produces heat due to the collision of conduction electrons with the atoms of the metallic wire.

### Final Answer:
The electric current passes through a metallic wire produces heat because of the collision of the conduction electrons with the atoms of the metallic wire.

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