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Ok, we have here another electronic circuit

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With this circuit what we want to control is the amount of light this LED emits

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And for that we have here the control component

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It's a LDR, Light Dependent Resistor

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That means that the resistance of the resistor depends on the amount of light we have in the environment

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The more light we have, the less resistance the component has

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And the less light, the more resistance

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As an electric circuit, it is a simple electric circuit

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the battery the current comes out of the battery through its positive terminal

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goes through this wire through this line passes through this fixed resistor goes

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through the LED and now goes to the LDR and comes back to the battery through

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negative terminal let's see how it works here we have the same circuits so I'm going to simulate

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the circuit now we don't have in theory any light so the LED is off as we increase the amount of

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light as you can see the LED emits more light because the resistance of the LDR

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is less than we have darkness in our environments then the more light the

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The less resistance, so the more currents through the circuits.

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The less light, the more resistance of this component, so the less currents through the

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circuit, so the LED is, in theory, off.

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And that's it.