Lesson 4 - Resistor Circuits and Ohm's Law Flashcards
1
Q
resistor
A
impedes the flow of current through a circuit
2
Q
perfect conductor
A
do not in anyway resist or impede the flow of charge
3
Q
resistance
A
(R) extent to which the resistor impedes the flow of charge.
4
Q
ohm’s law
A
V = IR
5
Q
What is the letter symbol for current?
A
I
6
Q
voltage drop
A
charge loses potential energy as it flows through a resistor
7
Q
power dissipation
A
the product of voltage (V) and current (I) in the resistor
8
Q
resistor circuit
A
connects a resistor across the terminals of the power supply
9
Q
formula for power dissipation
A
P=VI
10
Q
Ohm’s law formula for power dissipation
A
P=I 2 R
squared
