Table of Contents
What This Module is About..............................................................................................................i
What I Need to Know........................................................................................................................i
How to Learn from this Module…...................................................................................................ii
Icons of this Module..........................................................................................................................ii
What I Know......................................................................................................................................iii
Current, Resistivity, and Resistance............................................... 1
What I Need to Know............................................................................................. 1
What’s New….......................................................................................................... 2
What Is It...................................................................................................................3
What’s More............................................................................................................. 8
Assessment........................................................................................................................................11
Key to Answers.................................................................................................................................12
References….....................................................................................................................................14
i
, Module 4
Current, Resistivity, and Resistance
What This Module is About
This module talks about current and its relationship to other parameters such as
charge and time. It also talks about the resistivity of materials and how these are affected by
temperature. This module will be teaching you conductivity and how a material is able to
conduct current in terms of resistivity and conductivity.
This module has one (1) lesson:
Current, Resistivity, and Resistance
What I Need to Know
After going through this module, you are expected to:
1. Distinguish between conventional current and electron flow STEM_GP12EM-IIId-32
2. Apply the relationship charge = current x time to new situations or to solve related
problems STEM_GP12EM-IIIe-33
3. Describe the effect of temperature increase on the resistance of a metallic conductor
STEM_GP12EM-IIIe-35
4. Describe the ability of a material to conduct current in terms of resistivity and
conductivity STEM_GP12EM-IIIe-36
5. Apply the relationship of the proportionality between resistance and the length and
cross-sectional area of a wire to solve problems STEM_GP12EM-IIIe-37
i
What This Module is About..............................................................................................................i
What I Need to Know........................................................................................................................i
How to Learn from this Module…...................................................................................................ii
Icons of this Module..........................................................................................................................ii
What I Know......................................................................................................................................iii
Current, Resistivity, and Resistance............................................... 1
What I Need to Know............................................................................................. 1
What’s New….......................................................................................................... 2
What Is It...................................................................................................................3
What’s More............................................................................................................. 8
Assessment........................................................................................................................................11
Key to Answers.................................................................................................................................12
References….....................................................................................................................................14
i
, Module 4
Current, Resistivity, and Resistance
What This Module is About
This module talks about current and its relationship to other parameters such as
charge and time. It also talks about the resistivity of materials and how these are affected by
temperature. This module will be teaching you conductivity and how a material is able to
conduct current in terms of resistivity and conductivity.
This module has one (1) lesson:
Current, Resistivity, and Resistance
What I Need to Know
After going through this module, you are expected to:
1. Distinguish between conventional current and electron flow STEM_GP12EM-IIId-32
2. Apply the relationship charge = current x time to new situations or to solve related
problems STEM_GP12EM-IIIe-33
3. Describe the effect of temperature increase on the resistance of a metallic conductor
STEM_GP12EM-IIIe-35
4. Describe the ability of a material to conduct current in terms of resistivity and
conductivity STEM_GP12EM-IIIe-36
5. Apply the relationship of the proportionality between resistance and the length and
cross-sectional area of a wire to solve problems STEM_GP12EM-IIIe-37
i
