An electroscope is a device which is used to find if an object is

Options

A. charged
B. free of cracks
C. magnetic
D. hot

Answer

### Step-by-Step Text Solution:

1. **Understanding the Electroscope**: An electroscope is a scientific instrument used to detect the presence of electric charge on an object. It can indicate whether an object is charged and the nature of that charge.

2. **Components of an Electroscope**: The electroscope typically consists of two metallic strips (often made of gold or aluminum) that are closely placed together. These strips are connected to a metal rod that is insulated from the ground.

3. **Charging the Electroscope**: When an object is brought close to the electroscope or touches it, the strips can become charged. If the object has a charge, it transfers some of that charge to the strips.

4. **Behavior of the Strips**: If both strips acquire the same type of charge (either both positive or both negative), they will repel each other due to the electrostatic force. This repulsion causes the strips to move apart, increasing the angle between them.

5. **Observation**: The extent to which the strips separate can indicate the amount of charge present. The greater the separation, the more charge is present on the strips.

6. **Conclusion**: Thus, the primary function of an electroscope is to determine whether an object is charged and to identify the nature of the charge based on the behavior of the metallic strips.

### Final Answer:
An electroscope is a device which is used to find if an object is charged or not.

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