If we use very thin and long wire, then

Options

A. Sensitivity (output/input=ΔX/ΔW) of experiment increases
B. Young's modulus will remain unchanged
C. Wire may break or yield during loading.
D. All of the above

Explanation

To solve the question regarding the effects of using a very thin and long wire, we will analyze the concepts of sensitivity, Young's modulus, and the potential for the wire to break or yield under loading conditions.

### Step-by-Step Solution:

1. **Understanding Sensitivity**:
- Sensitivity (S) is defined as the ratio of the change in output (Δx) to the change in input (ΔW), i.e., \( S = \frac{\Delta x}{\Delta W} \).
- In this context, Δx represents the change in length of the wire (ΔL) when a weight (ΔW) is applied.

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