IG Phy – Charge and Electric Fields (II)

When you suspend charged polythene and acetate rods close together, they will repel each other.

A balloon rubbed against clothing will stick to a wall due to the attraction between negative charges on the balloon and positive charges on the wall.

The charge on a single electron is +1.6 × 10⁻¹⁹ C.

A proton has a positive charge.

The electric field around a charged object is a region where a charge will experience a magnetic force.

The closer the electric field lines, the weaker the electric field.

Like charges repel each other in an electric field.

The electric field lines around a positive charge point towards the charge.

Lightning is caused by the sudden discharge of electrical charge due to friction between insulators.

Antistatic wrist straps are used to connect workers to the ground to safely discharge static charge.

An electric field exists around any charged object.

A positively charged conducting sphere has electric field lines pointing inward.

The electric field between two parallel plates with opposite charges is uniform.

Combing your hair can cause a sudden discharge of electrical charge.

In a metal structure, the electrons are held tightly and do not move freely.