Basic Electricity, Physics

1. Current Electricity (Electricity)
Potential Difference, Current,
Resistance, Ohms Law, Circuit

2. Electric Potential is potential energy per unit
mass
Mass
nergyPotentialE
tentialElectricPo 

3. • Electric Potential Difference – Difference in
electric potential / charge (Voltage)
• Current – the rate of flow of electric charges at
a certain location. Rate flow of charge/time
Unit of measurement for I is Ampere, A.
t
Q
I 

4. Resistance – the tendency of an object to resist
flow of current ( unit of measurement, Ohms)


5. Electric Circuit
Electric Circuit – a closed loop of electron flow.

6. Circuit Symbols
Symbols

8. Types of Circuit
Series
Parallel

9. Combination

10. Ohms Law
IRV 
If a circuit has a resistance of 5 ohms and its
voltage is 25 V, what is the total current of the
circuit?
Given: V = 25 V, R = 5 Ohms.
AI
IIRV
5
5
25
)5(25

