7.3 Reading Guide

Circuits usually include three components which are:

• source of voltage difference---battery or electrical outlet

• one or more devices that use electrical energy

• Conductors such as wires

• series circuit

In a__________________, the current has only one loop to flow through.

• source of voltage difference---battery or electrical outlet

• one or more devices that use electrical energy

• Conductors such as wires

• series circuit

Series circuits are used in _____________ and _____________.

• flashlights

• holiday lights

• same

• Parallel circuits

Because the parts of a series circuit are wired one after another,

 

the amount of current is _________ through every part.

• flashlights

• holiday lights

• same

• Parallel circuits

_______________ contain two or more branches for current to move through.

• flashlights

• holiday lights

• same

• Parallel circuits

Because all branches connect the same two point of the circuit,

 

The voltage difference is _________________in each branch.

• lights in your home

• appliances in your home

• same

• 120 V

Two example of use of a parallel circuit are :_________

 

and _________.

• lights in your home

• appliances in your home

• same

• 120 V

In the United States the voltage difference is ______.

• lights in your home

• appliances in your home

• same

• 120 V

To protect against overheating of the wires, all household circuits

 

contain either a __________ or a ______

• fuse

• circuit breaker

• melts

• break in the circuit

An electrical fuse contains a small piece of metal that

 

___________ if the current becomes too high.

• fuse

• circuit breaker

• melts

• break in the circuit

Tags

NGSS.MS-PS1-4