GenPhy

The accumulation of electric charge on a surface.

What is static electricity?

Electrons.

Which particle is responsible for static electricity?

They repel each other.

What happens when two objects with the same charge are brought close together?

Radially outward from the charge.

What is the direction of the electric field around a positive charge?

Zero.

What is the electric field inside a conductor in electrostatic equilibrium?

Both positive and negative charges.

Which type of charge creates an electric field?

Parallel and equally spaced field lines.

What does a uniform electric field look like?

It decreases inversely with the square of the distance.

What happens to the electric field strength as the distance from a point charge increases?

Friction.

Rubbing a balloon against your hair causes the balloon to stick to a wall. What type of charging is this?

Insulators.

What type of material holds static charge best?

They gain opposite charges and attract each other.

Why do socks stick together when they come out of the dryer?

Removing excess charge by connecting to the earth.

What is grounding?

Stationary charges.

Coulomb’s Law applies to which type of charges?

Coulomb.

The unit of electric charge in Coulomb’s Law is:

Charles-Augustin de Coulomb.

Coulomb’s Law is named after:

Electromagnetic force.

What type of force is described by Coulomb’s Law?

Inversely proportional to the square of the distance.

Coulomb’s Law states that the electric force is:

Electric charges at rest.

What does electrostatics primarily study?

Coulomb.

The unit of electric charge is:

They experience forces when close to other charges.

What is the main property of charges in electrostatics?

Repel each other.

Like charges in electrostatics:

Coulomb’s Law.

The force between two charges in electrostatics is governed by:

Charges cannot be created or destroyed.

Which of these is a fundamental principle of electrostatics?

Force per unit charge.

The electric field is defined as:

Their charges and the distance between them.

The electrostatic force between two charges depends on:

Coulomb.

What is the fundamental unit of electric charge?

From positive to negative terminal.

What is the direction of current flow in a circuit?

Voltage is proportional to current and resistance.

What does Ohm’s Law state?

Electron.

Which particle is responsible for carrying electric charge in a conductor?

Weber.

What is the SI unit of magnetic flux?

circuit breaker

A safety device that automatically stops the flow of electricity when there is an overload.

fuse

A device that melts when excessive current flows, protecting electrical circuits.

voltage

The electrical potential difference measured in volts.

current

The flow of electric charge measured in amperes.

resistance

The opposition to electric current, measured in ohms.

conductor

A material that allows electricity to flow easily, such as copper.

insulator

A material that resists the flow of electricity, such as rubber or plastic.

watt

The unit of power, indicating the rate of energy consumption.

ohm

The unit of electrical resistance.

ampere

The unit of electric current.

series circuit

A circuit where components are connected end to end, causing electricity to flow through a single path.

grounding

A safety feature that directs excess electricity into the earth to prevent electrical shocks.

parallel circuit

A circuit where components are connected across common points, allowing multiple paths for electricity.

power surge

A sudden increase in electrical voltage, which can damage appliances.

short circuit

A dangerous situation where electricity takes an unintended path, potentially causing fires.

outlet

A socket that provides access to electrical power.

switch

A device used to control the flow of electricity in a circuit.

transformer

A device that changes voltage levels for safe electricity distribution.

electrical meter

A device that measures the amount of electricity consumed in a household.

extension cord

A flexible cable with multiple outlets used to power multiple devices from a single source.