10.9 - A Question Of Resistance Flashcards
1
Q
Resistance
A
measure of the electrical energy required for an electric current to pass through an object. The energy is changed to heat.
2
Q
Insulators
A
material that does not allow heat to move through it
3
Q
statement relating the change in voltage across a conductor to the change in current. It states that the voltage across a particular conductor divided by the current through it is constant. R=V/I
A
Ohm’s law
4
Q
describes conductors that obey Ohm’s Law
A
Ohmic
5
Q
device for which the resistance can be altered
A
Variable resistor
6
Q
circuit component that has resistance, are used in electric circuits to control the voltage and current
A
Resistors