Circuitos LDR Quiz

What does LDR stand for?

• Laser Detection Radar

• Long Distance Runner

• LDR stands for Light Dependent Resistor.

• Low Density Refrigerator

What is the principle of LDR circuits?

• The principle of LDR circuits is that the resistance of the LDR changes with the voltage

• The principle of LDR circuits is that the resistance of the LDR changes with the humidity

• The principle of LDR circuits is that the resistance of the LDR changes with the intensity of light.

• The principle of LDR circuits is that the resistance of the LDR changes with the temperature

Name one application of LDR circuits.

• Coffee maker

• Automatic car wash

• Automatic street lights

• Smartphone camera flash

What are the characteristics of LDR?

• LDR is known for its ability to emit light when exposed to electricity

• The characteristics of LDR include its ability to change resistance based on temperature

• The characteristics of LDR (Light Dependent Resistor) include its ability to change resistance based on the amount of light it is exposed to, making it useful for detecting light levels in various applications.

• LDR is commonly used for measuring sound levels

How does an LDR circuit work?

• An LDR circuit works by producing sound when exposed to light.

• An LDR circuit works by emitting light when exposed to electricity.

• An LDR (Light Dependent Resistor) circuit works by changing its resistance based on the amount of light it is exposed to. When there is more light, the resistance decreases, and when there is less light, the resistance increases.

• An LDR circuit works by changing its resistance based on the temperature it is exposed to.

What factors affect the resistance of an LDR?

• The resistance of an LDR is affected by the color of the light

• The resistance of an LDR is affected by the voltage

• The resistance of an LDR is affected by the intensity of light. When the light intensity increases, the resistance decreases, and vice versa.

• The resistance of an LDR is affected by temperature

What is the symbol used to represent an LDR in circuit diagrams?

• A triangle with a line through it

• A square with a line through it

• The symbol used to represent an LDR in circuit diagrams is a circle with a line through it, with arrows pointing in and out of the circle.

• A hexagon with a line through it

What is the purpose of using an LDR in a light-sensitive circuit?

• To decrease the resistance in the circuit

• To increase the voltage in the circuit

• To generate heat in the circuit

• The purpose of using an LDR in a light-sensitive circuit is to vary the resistance based on the intensity of light, allowing the circuit to respond to changes in light levels.

Explain the process of designing an LDR circuit.

• The process of designing an LDR circuit involves choosing the brightest LED available

• The process of designing an LDR circuit involves using a fixed resistor instead of a variable resistor

• The process of designing an LDR circuit involves connecting the LDR and resistor in series instead of a voltage divider circuit

• The process of designing an LDR circuit involves selecting the appropriate LDR, choosing the right resistor, connecting the LDR and resistor in a voltage divider circuit, and then using the output voltage to control a load such as a light or a motor.

What are the advantages of using LDR circuits?

• They can be used to detect sound levels

• They are highly resistant to temperature changes

• They are very expensive to produce

• The advantages of using LDR circuits include their ability to detect light levels, their low cost, and their simple design.