The wrong statement about electric lines of force is

Options

A. These originate from positive charge and end on negative charge
B. They do not intersect each other at a point
C. They have the same form for a point charge and a sphere
D. They have physical existence

Answer

To solve the question about the wrong statement regarding electric lines of force, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Electric Lines of Force**:
Electric lines of force represent the direction of the electric field created by charges. They originate from positive charges and terminate at negative charges.

2. **Analyzing Each Statement**:
- **Option A**: "These originate from positive charge and end on negative charge."
- This statement is **correct**. Electric field lines do indeed start from positive charges and end on negative charges.

- **Option B**: "They do not intersect each other at a point."
- This statement is also **correct**. If electric field lines were to intersect, it would imply that at that point, there are two different directions for the electric field, which is not possible.

- **Option C**: "They have the same form for a point charge and a sphere."
- This statement is **correct**. The electric field lines for a point charge and a uniformly charged sphere are similar in shape outside the sphere.

- **Option D**: "They have physical existence."
- This statement is **incorrect**. Electric field lines are a conceptual tool used to visualize electric fields. They do not have a physical existence in reality.

3. **Conclusion**:
The wrong statement about electric lines of force is **Option D**: "They have physical existence."