an attachment, connected to the armature of a motor or generator, through which electrical connection is made and which ensures that the current flows as direct current.

 

an food, connected to the armature of a motor or generator, through which electrical connection is made and which ensures that the current flows as direct current.

 

a gummy bear, connected to the armature of a motor or generator, through which electrical connection is made and which ensures that the current flows as direct current.

 

an candle, connected to the armature of a motor or generator, through which electrical connection is made and which ensures that the current flows as direct current.

 

a hard rubber core made into a magnet by the passage of electric current through a coil surrounding it

 

a soft rubber core made into a magnet by the passage of electric current through a coil surrounding it

 

a hard metal core made into a magnet by the passage of electric current through a coil surrounding it

 

a soft metal core made into a magnet by the passage of electric current through a coil surrounding it

 

They attract

 

They repel

 

No effect

 

They reverse each other

 

a build up of electrons

 

the difference in charge between 2 points

 

the flow of electrons over a circuit

 

the opposition to flow of electrons

 

A transformer is a static device which transfers fire energy from one circuit to another through the process of electromagnetic induction. It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits.

 

A transformer is a static device which transfers earth energy from one circuit to another through the process of electromagnetic induction. It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits.

 

A transformer is a static device which transfers electrical energy from one circuit to another through the process of electromagnetic induction. It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits.

 

A transformer is a transforming car

 

The ancient Greeks

 

Benjamin Franklin

 

William Gilbert

 

All of above

 

Conductor

 

Load

 

Power Source

 

Thomas Edison

 

Joseph Swan

 

Hiram Maxim

 

All of above

 

a food of an electric circuit that is defined as the electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force

 

a unit of an electric current that is defined as the electrical resistance between three points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force.

 

a unit of an electric circuit that is defined as the electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force.

 

a unit of an electric circuit that is defined as the electrical resistance between one points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force.

 

a colored material.

 

a conducting material.

 

an insulating material.

 

none of these.

 

V/A = W

 

V x A = W

 

V + A = W

 

V - A = W

 

a unit of electric potential, also known as electromotive force

 

a unit of fire potential, also known as electromotive force

 

a unit of water potential, also known as electromotive force

 

a unit of earth potential, also known as electromotive force

 

True

 

False

 

I = V/R

 

I = V x R

 

I = V + R

 

I = V - R

 

a law stating that like charges repel and opposite charges attract, with a force proportional to the product of the charges and inversely proportional to the square of the distance between them

 

a law stating that like charges repel and opposite charges attract, with a food proportional to the product of the charges and inversely proportional to the square of the distance between them

 

a law stating that like charges attract and opposite charges attract, with a force proportional to the product of the waste and inversely proportional to the square of the distance between them

 

a cafeteria stating that like charges repel and opposite charges attract, with a force proportional to the product of the charges and inversely proportional to the square of the distance between them

 

Electric motor, any of a class of transformers that convert electrical energy to mechanical energy, usually by employing hyfromagnetic phenomena.

 

Electric motor, any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena.

 

Electric motor, any of a class of Nat Geo videos that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena.

 

Electric motor, any of a class of devices that convert electrical energy to mechanical energy, usually by not employing electromagnetic phenomena.

 

is the strength of a current of electricity expressed in amperes

 

isn't the strength of a current of electricity expressed in amperes

 

is the strength of a circuit being expressed in amperes

 

isn't the strength of a circuit being expressed in amperes