Principles of Technology

Electrical Resistance (4:3)

Vocabulary (pages 63-71)

 

Define electrical resistance

 

"Electrical resistance is the net result of ____________________________________ "

 

"...the energy given to the atoms shows up as _____________________________________ "

 

Resistance - unifying equation

 

Voltage

 

Current

 

Ohm's Law

 

Formula for wire resistance (and define the variables)

 

 

What is the resistivity value of glass? ________________ Copper? ________________

 

Which would you use as a conductor?

 

Resistor

 

Semiconductors

 

Insulators

 

Resistors in series (formula)

 

Resistors in parallel (formula)

 

Variable resistor

 


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