QuestionThe resistance of the LDR decreases as the incident light increases. True False
Studdy Solution
STEP 1
What is this asking?
Is it true or false that an LDR's resistance goes down when more light shines on it?
Watch out!
Don't get tricked by the wording!
Make sure you understand what "incident light" and "decreases" mean in this context.
STEP 2
1. Understand LDRs
2. Answer the question
STEP 3
LDR stands for **Light Dependent Resistor**.
It's a special type of resistor whose resistance changes depending on how much light falls on it.
Think of it like a magic resistor that can sense light!
STEP 4
When light shines on an LDR, it gives energy to the electrons in the material.
These energized electrons are more free to move, which means the resistance *decreases*.
Less light means fewer free electrons and *higher* resistance.
STEP 5
The problem asks if it's true that when the incident light (the light shining on the LDR) *increases*, the resistance *decreases*.
STEP 6
From what we learned about LDRs, more light means *lower* resistance.
So, as the light increases, the resistance decreases.
STEP 7
The statement is **TRUE**!
STEP 8
True.
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