A/An ______ can also be used to find the nature of electric charge in an object

Options

A. Electroscope
B. Conduction method
C. Induction method
D. Friction method

Answer

To solve the question "A/An ______ can also be used to find the nature of electric charge in an object," we need to identify the correct term that fits in the blank.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a device or method that can determine whether an object has a positive or negative electric charge.

2. **Identifying Possible Options**: The video mentions three methods: friction method, induction method, and conduction method. However, these methods are not devices but rather techniques for charging objects.

3. **Recognizing the Correct Device**: The video specifically points out that an electroscope is used to detect the nature of electric charge. An electroscope is a scientific instrument that can indicate whether an object is positively or negatively charged.

4. **Finalizing the Answer**: Based on the information provided, the correct term to fill in the blank is "electroscope."

### Complete Answer:
A/An **electroscope** can also be used to find the nature of electric charge in an object.

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