Introduction:
Determining whether an object is charged or not can be done through various methods. In this guide, we will discuss different ways to identify the charge on an object. These methods involve observing the behavior of the object and its interaction with other charged objects.

Electroscope Method:
- An electroscope is a device used to detect the presence and type of charge on an object.
- It consists of a metal rod with two metal leaves attached at the bottom.
- When a charged object is brought close to the electroscope, the leaves either repel or attract each other.
- If the leaves repel each other, it indicates that the object is charged with the same type of charge as the electroscope.
- If the leaves attract each other, it suggests that the object is charged with the opposite type of charge.

Charging by Friction Method:
- This method involves rubbing two objects together and observing their behavior.
- When two objects are rubbed together, electrons from one object can transfer to the other object.
- If an object gains electrons, it becomes negatively charged.
- If an object loses electrons, it becomes positively charged.
- By observing the behavior of the objects after rubbing, we can determine their charge.

Charging by Induction Method:
- This method involves bringing a charged object close to a neutral object without physical contact.
- When a charged object is brought close to a neutral object, the charges in the neutral object redistribute.
- If the charges in the neutral object are attracted to the charged object, it suggests that the neutral object is oppositely charged.
- If the charges in the neutral object are repelled by the charged object, it indicates that the neutral object is charged with the same type of charge.

Charging by Conduction Method:
- This method involves physically touching a charged object with a neutral object.
- When the two objects come into contact, electrons can transfer between them.
- If the neutral object gains electrons, it becomes negatively charged.
- If the neutral object loses electrons, it becomes positively charged.
- By observing the behavior of the objects after contact, we can determine their charge.

Summary:
In summary, there are various methods to determine whether an object is charged or not. These include using an electroscope, charging by friction, charging by induction, and charging by conduction. By observing the behavior of objects and their interaction with other charged objects, it is possible to identify the charge on an object.