What are three examples of static electricity? (Some examples might include: walking across a carpet and touching a metal door handle and pulling your hat off and having your hair stand on end.) When is there a positive charge? (A positive charge occurs when there is a shortage of electrons.)

An electrical charge is created when electrons are transferred to or removed from an object. Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.

Because electrons are negatively charged, the balloon acquires a negative charge, while the hair, with its loss of negative charges, now has a net positive charge. So the balloon and hair have opposite charges, and opposite charges attract each other. That’s why the hair gets pulled toward the balloon (Figure 2).

Rubbing the balloon onto your hair or onto the wool fabric adds electrons to the balloon and causes the balloon to become negatively charged. Your positively charged hair is attracted to the negatively charged balloon and starts to rise up to meet it.

1) If a charged object is brought near the charged puck, it will move due to electrostatic force between charges. 2) We can use both positive and negative charges to move the puck. Since the puck is positively charged, Unlike charges attract each other.

As we’ll discuss in this lesson, he found that the force between charged particles was dependent on only two factors: the distance between the particles and the amount of electric charge that they carried.

The magnitude of the electrostatic force F between two point charges q1 and q2 is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them. Like charges repel each other, and opposite charges mutually attract.

It states that, to determine the direction of the magnetic force on a positive moving charge, you point the thumb of the right hand in the direction of v , the fingers in the direction of B , and a perpendicular to the palm points in the direction of F .

The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery.

The force of repulsion of two +1.00 Coulomb charges held 1.00 meter apart is 9 billion Newton.

3000 m.

According to Coulomb, the electric force for charges at rest has the following properties: Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges.

Coulomb’s law explains how big the force will be. Coulombs law explains that the Force F is relative to the ratio of q1, q2, 1/r2. q1 and q2 are the scales of each charge and r is the distance between the two electric charges.

In Coulomb’s law, r2 refers to the square of the separation distance of the two charges in the described system.

These lines are straight, and as we get further away from the source, the lines move further away from each other. The area of the figure formed by joining these lines hence grows larger as we move away from the source. Since the area is proportional to distance (r) squared, we have .