Ac and Dc

What is the difference between the movement of the two electrons between the two types of currents?

• There's no difference.

• An Alternating Currents electrons move in one direction while a Direct Currents electrons move back and forth.

• An Alternating Currents electrons move back and forth while a Direct Currents electrons move in one direction.

• An Alternating Currents electrons move back and forth while a Direct Currents electrons don't move at all.

Tags

NGSS.MS-PS2-3

What is a type of electric current that reverses direction periodically over time?

• Direct currents

• Alternating currents

What is an Alternating Current?

• An electric current that never changes direction.

• An electric current that changes direction many times.

• An electric current that has no frequency.

• A current that has no electrical properties.

What is a Direct Current?

• An electrical current flowing in many directions.

• A current with a high frequency.

• An electric current flowing in one direction only.

• A current that is never a straight line.

In which type of circuit does the electrical current regularly change direction in the wire?

• AC - alternating current

• DC - direct current

• EM - electromagnetic

• Induced current circuits

What is the main difference between AC and DC electricity?

• AC is used in batteries, DC is used in homes

• AC changes direction, DC flows in one direction

• AC is safer than DC

• DC is used in power plants

You are building a small toy car and you need to power it. What type of current would you use if you decide to power it with a battery?

• Direct Current (DC)

• Alternating Current (AC)

• Constant Current (CC)

• Base Current (BC)

Electric current that flows in only one direction. 

• Voltage 

• Direct Current 

• Alternating Current

• Series Circuit 

Imagine you are at home and you want to use your toaster. What type of current does the toaster use?

• Direct Current (DC)

• Alternating Current (AC)

• Constant Current (CC)

• Base Current (BC)

Which of the following is true about the direct current?

• Generated in the power station

• Flows in two directions

• Its voltage can be increased and decreased

• Produced by a solar cell