Current electricity

A material in which electrons are able to move easily

• Circuit
• Insulator 
• Resistance 
• Conductor 

A material in which electrons are not able to move easily 

• Circuit 
• Insulator 
• Resistance 
• Conductor

Tags

NGSS.HS-PS2-6

Electric current that flows in only one direction. 

• Voltage 
• Direct Current 
• Alternating Current
• Series Circuit 

The flow/movement of electric charges 

• Voltage
• Resistance 
• Current 
• Circuit 

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A closed path that electric current follows 

• Voltage
• Current
• Resistance 
• Circuit

1. Kirchhoff's junction rule is a reflection of

• Conservation of current density vector

• Conservation of charge and no accumulation of charge at the the junction

• the momentum with which a charged particle approaches a junction is unchanged as the charged particle leaves the junction

• Conservation of energy

Which of the following characteristics of electrons determines the current in a conductor?

• Drift velocity alone

• Thermal velocity alone

• Both A and B

• Neither A nor B

------ is called the increase in resistance per unit original resistance per degree kelvin rise of temperature

• Thermal velocity

• temperature coefficient of electrical resistivity

• temperature coefficient of electrical resistance

• conducance

This is an example of a _______ circuit

• open
• series
• parallel
• square

What is the power of a 3V light bulb with 20 A running through it?

• 0.15W
• 6W
• 60W
• 6.67W