# Charging by Induction

• jgens
In summary, the steps for charging a single object by induction when the charging object is positive are as follows: Place the positively charged object near the neutral object without touching. Ground the neutral object by placing a finger on the positive side. Remove the finger and the charging object, resulting in the neutral object becoming negatively charged.

Gold Member

## Homework Statement

Describe the steps in charging a single object by induction (using grounding) if the charging object is positive.

N/A

## The Attempt at a Solution

We've had to do explanations similar to this before during class; however, never with a positively charged object. Would someone mind checking to make sure I've got the steps right? Thanks.

Place the positively charged object near the neutral object but ensure that they do not touch. Ground the neutral object by placing a finger on the positive side (side opposite the charging object); this will allow electrons to flow from the ground into the neutral object. Remove you finger from the object and then remove the charging object. The "neutral" object has now been negatively charged by induction.

Looks good.

Your steps are correct. By bringing a positively charged object near a neutral object and grounding the neutral object, the electrons from the ground will be attracted to the positive charge on the charging object. When the charging object is removed, the neutral object will be left with a net negative charge due to the excess electrons that were transferred from the ground. This is known as charging by induction and is an effective way to charge objects without direct contact.

## 1. What is charging by induction?

Charging by induction is a method of charging an object without direct contact. This is accomplished by bringing a charged object near the object to be charged, which causes the redistribution of charges in the object and results in the object becoming charged.

## 2. How does charging by induction work?

When a charged object is brought near an uncharged object, the electric field of the charged object causes the electrons in the uncharged object to move. This movement of electrons results in one side of the object becoming positively charged and the other side becoming negatively charged, thus charging the object by induction.

## 3. What are the advantages of charging by induction?

Charging by induction is a safe and efficient method of charging objects without the risk of electric shock. It also allows for the charging of objects that are not easily accessible, as long as they are within the range of the electric field of the charged object.

## 4. What are some applications of charging by induction?

Charging by induction is commonly used in electronic devices such as smartphones and laptops, where wireless charging is possible. It is also used in electrostatic spray painting and air filtration systems.

## 5. Are there any limitations to charging by induction?

Charging by induction requires the presence of a charged object and can only charge objects within the range of its electric field. It also does not work well with objects that are highly conductive or have a very small surface area.