Lesson 3- Power Supplies & Simple Circuits Flashcards
1
Q
Power Supply
A
device or system that converts some form of energy into electrical energy
2
Q
electric circuit
A
a closed loop through which current can flow
3
Q
switch
A
a break in the circuit to stop an electric current
4
Q
closed circuit
A
when a switch is closed connecting the wire
5
Q
open circuit
A
when switch is open and wires do not connect.
6
Q
How do electronic devices operate?
A
By applying voltages that create electric currents through various components
7
Q
Why is a negative terminal called a ground?
A
a positive charge will fall away from the positive terminal toward the negative terminal
8
Q
If we see the power symbol, how do you know which side is positive?
A
The side with the longer horizontal bar.
