Electricity and Magnetism

Front

What is Voltage?

Back

Voltage is the electric potential difference between two points in a circuit, measured in volts (V). It is the force that pushes electric charges through a conductor.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. It is expressed as V = I × R.

Front

What is Resistance?

Back

Resistance is a measure of the opposition to the flow of electric current in a conductor, measured in ohms (Ω).

Front

What is an Electric Circuit?

Back

An electric circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and a load.

Front

What is a Series Circuit?

Back

A series circuit is a type of electrical circuit in which the components are connected end-to-end, so that the current flows through each component in turn.

Front

What is a Parallel Circuit?

Back

A parallel circuit is a type of electrical circuit in which the components are connected across common points or junctions, allowing multiple paths for the current to flow.

Front

What is an Electric Motor?

Back

An electric motor is a device that converts electrical energy into mechanical energy, typically using electromagnetic principles.

Front

What is an Electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It can be turned on and off.

Front

What is an Insulator?

Back

An insulator is a material that does not conduct electricity well, preventing the flow of electric current. Examples include rubber and plastic.

Front

What is a Conductor?

Back

A conductor is a material that allows electric current to flow through it easily, such as copper or aluminum.