Electrical Circuits Flashcards
1
Q
Current Symbol
A
I
2
Q
Current Unit
A
A
3
Q
Charge Symbol
A
Q
4
Q
Charge Unit
A
C
5
Q
Time Symbol
A
t
6
Q
Time Unit
A
Seconds
7
Q
Voltage Symbol
A
V
8
Q
Voltage Unit
A
V
9
Q
Energy Symbol
A
W
10
Q
Energy Unit
A
J
11
Q
Resistance Symbol
A
R
12
Q
Name the 3 formulas
A
VWQ
QIT
VIR
13
Q
State the difference between Ohmic and non-Ohmic conductors, and give an example of each
A
Ohmic Conductors:
- Follow Ohm’s Law (V = IR)
- Resistance remains constant regardless of voltage or current
- Current increases linearly with voltage
- Examples: metals like copper, aluminum, and gold
Non-Ohmic Conductors:
- Do not follow Ohm’s Law
- Resistance changes with voltage or current
- Current does not increase linearly with voltage
- Examples: semiconductors like silicon, diodes, and transistors
14
Q
Ohm’s Law
A
the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperature, remain constant.
15
Q
What is the formula for Ohms law?
A
R=V/I
