Choose the statement which is not correct in the case of an electric fuse.

Options

A. Fuses are inserted in electric circuits of all buildings.
B. There is a maximum limit on the current which can safely flow through the electric circuits.
C. There is a minimum limit on the current which can safely flow in the electric circuits.
D. If a proper fuse is inserted in a circuit it will blow off if current exceeds the safe limit.

Explanation

To determine which statement about electric fuses is not correct, let's analyze the statements provided:

1. **Fuses are inserted in electric circuits of all buildings.**
- This statement is true. Fuses are indeed used in electrical circuits to protect against excessive current.

2. **There is a maximum limit on the current which can safely flow through the electric circuit.**
- This statement is also true. Every fuse has a specific rating that indicates the maximum current it can handle before it blows.

3. **There is a minimum limit on the current which can safely flow through the electric circuit.**
- This statement is not correct. Fuses do not have a minimum current limit; they are designed to protect against excessive current, not to regulate a minimum.

4. **If a proper fuse is inserted in a circuit, it will blow off if the current exceeds the safe limit.**
- This statement is true. A fuse is designed to melt and break the circuit if the current exceeds its rated capacity.

Based on this analysis, the statement that is not correct is: **"There is a minimum limit on the current which can safely flow through the electric circuit."**

### Step-by-Step Solution:
1. **Identify the statements regarding electric fuses.**
- Review each statement provided about electric fuses.

2. **Evaluate the truth of each statement.**
- Check if each statement aligns with the principles of how fuses operate.

3. **Determine which statement is incorrect.**
- Identify that fuses do not have a minimum current limit, only a maximum.

4. **Conclude with the incorrect statement.**
- State that the incorrect statement is about the existence of a minimum limit on current.