Charging by Induction Temporarily When a charged object

Charging by Induction: Temporarily When a charged object is brought close to, but not touching, a neutral object, the electrons in the neutral object move either away from or toward the charged object. When electrons move within an object because of a nearby charged object, it is called induced charge separation charging by induction

Charging by Induction: Temporarily

Charging by Induction: Temporarily Once the charged object is moved away, the electrons in the neutral object return to their original positions.

Charging by Induction: Permanently You can permanently charge an object using induction. To do this, you need to ground the neutral object.

Charging by Induction: Permanently _ _ A negatively charged object is placed near a neutral object, causing the electrons to move.

Charging by Induction: Permanently _ _ The neutral object is grounded, allowing the repelled electrons in the neutral object to escape to the ground. The neutral object loses electrons.

Charging by Induction: Permanently _ _ The ground is removed, leaving the ball with a positive charge.

Charging by Induction: Permanently §If electrons move from the neutral object through the wire to the ground (object loses electrons), the object becomes positively charged. §If electrons move from the ground through the wire toward the object (object gains electrons), the object becomes negatively charged.

Charging by Induction: Permanently Animation of Permanent Induction

Applications of Static Electricity Application Science principles involved Electrostatic charging by speakers induction, law of electric charges How the application works In an electrostatic speaker, an audio transformer induces opposite electrical charges on two outer plates (stators) and then (b) reverses them.

Note: Charging by Induction This method of charging objects involves no contact between a charged object and a neutral object, and grounding is used.

Note: Charging by Induction 1. Negative Neutral

Note: Charging by Induction 1. Negative e. Neutral

Note: Charging by Induction 1. A negatively charged rod is placed near a neutral object. The excess electrons in the rod repel the _______ in the object making them move electrons as far away from the rod as possible. This shifting of electrons makes one side of the object _________ and the other side positive _________ (however, the object is still negative neutral). This is called _______________. induced charge separation

Note: Charging by Induction 2. e- Negative Ground

Note: Charging by Induction 2. If the neutral object is grounded, the repelled object electrons move from the ______ to the ground loses ______ (the object _____ electrons).

Note: Charging by Induction 3. Negative Positive

Note: Charging by Induction 3. When the ground is removed, the object is left positive with a _______ charge (because it lost _____ electrons to the ground).

Note: Charging by Induction *** When objects are permanently charged by induction, the induced opposite charge is always _______ that of the charged object.

Charging by Induction Questions 1. Temporary Induction A. A neutral metal-leaf electroscope. B. A negatively charged object is placed near (not touching) the metal ball of a neutral metalleaf electroscope. C. The charged object has been removed.

Charging by Induction Questions 1. Temporary Induction A. A neutral metal-leaf electroscope. B. A negatively charged object is placed near (not touching) the metal ball of a neutral metalleaf electroscope. e- C. The charged object has been removed.

Charging by Induction Questions 2. Permanent Induction A. A positively charged object is placed near (not touching) a neutral electroscope. B. The electroscope is then grounded. C. The ground is removed. Then the charged object is removed.

Charging by Induction Questions 2. Permanent Induction A. A positively charged object is placed near (not touching) a neutral electroscope. B. The electroscope is then grounded. C. The ground is removed. Then the charged object is removed. ee-

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