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1. •Activity 1:
“Battle of the Butt”

2. THE RELATIONSHIP BETWEEN
CURRENT, VOLTAGE, AND
RESISTANCE
OHM’S LAW

3. OBJECTIVES:
•Identify and differentiate current, resistance
and voltage,
•Determine what is Ohm’s Law,
•Solve problems related to Ohm’s Law

5. •Current
- is the rate of flow of electric charges
one point to another in a circuit.
- it is what flows on a wire or conductor
- it is measured in Amperes and it has
positive and negative terminal

6. •Voltage
– it is the difference in charge between two
points
- it is what makes the current move
Example: Battery

7. Resistance
– determines how much current will flow
through a component
- is a material’s tendency to resist the flow of
charge (current)
Example: Resistor

9. •Ohm’s Law
– in a simple circuit, voltage is directly
proportional to current,
where V=IR

10. CURRENT VOLTAGE RESISTANCE
- Amperes - Volts - Ohms
- I - V - Ω
- I =
𝑉
𝑅
- V = IR
- R =
𝑉
𝐼

11. •Example 1:
If a circuit has a resistance of 44 Ω and a
current of 5 A, what is its voltage?

12. Given: Solution:
Resistance(R) = 44 Ω V = IR
Current(I) = 5 A V = 44Ω x 5A
V = 220V
Required:
Voltage(V) = ?

13. Problem 2:
An electric fan has a resistance of 3 kΩ and a
voltage rating of 220 volts. What is the current needed
to operate the electric fan?

14. Given:
R = 3 k Ω
V = 220 V
Required:
I = ?
Solution:
Conversion of k Ω - Ω
3 k Ω x
1000 Ω
1 k Ω
= 3000 Ω
Solving for the required:
I =
𝑉
𝑅
I =
220 𝑉
3000 Ω
I = 0.07333333 or 0.073 A

15. • TRY THIS:
Problem 1.
What is the amount of current (I) in this circuit?

16. • Problem 2:
In the Province of Antique, Akelco is one of the
electric energy distributor here in Libertad which
each household 220 volts of voltage and 60 A of current.
By applying your knowledge on Ohm’s Law, solve for the
resistance.

17. •Generalization

18. Test I. 4 Pics 1 Word
Identify the words that is being described by the
picture.
1.
2.
3.

19. • Test II. Problem Solving
Suppose, an ambulance starter motor needs 40A
operate with a resistance of 0.150 ohms. What is the
needed voltage to start the motor in order to send the
covid – 19 patients to the hospital?

20. • Additional Activity
Explain the advantages and disadvantages of series and
parallel circuits.
• You can study the lesson through this link:
https://www.bing.com/videos/search?q=what+is+the+advantag
s+and+disadvantages+of+series+and+parallel+circuits&qpvt=what+i
+the+advantages+and+disadvantages+of+series+and+parallel+circu
s&view=detail&mid=FD9315D5FB8697E95EEFFD9315D5FB8697E95EE
&&FORM=VRDGAR

21. Thank you!