B1A Electro 2 Final Quiz

What is the main idea of using LDR in an electronic circuit?

• As current limiter

• As voltage controller   

• As circuit protection   

• As a sensor component

How does a resistor limit the current flowing in a light-dependent resistor (LDR) circuit?

• By changing color

• By decreasing the power

• By increasing the voltage

• By increasing the resistance

When constructing a circuit, why is it important to verify the orientation of components like LEDs?

• Ensure they illuminate the room

• Maintain symmetry in the circuit

• Achieve a specific smell in the circuit

• Prevent damage and ensure correct functionality

How does a basic sensor differ from a light dependent resistor in a circuit?

• Sensors cannot detect light

• Sensors can detect various parameters besides light

• Sensors have no impact on current flow

• Sensors are incapable of converting physical phenomena to electrical signals

What is the primary function of a light dependent resistor in a circuit?

• To decrease circuit voltage

• To change color when exposed to light

• To produce sound when light is detected

• To regulate the resistance based on light intensity

Which tool is practically used to identify whether a circuit has been wired/connected properly?

• Voltmeter

• Clamp meter

• Power meter

• Insulation tester

Which step is crucial before constructing any electronic circuit?

• Engaging in multiple tasks simultaneously

• Using components of different voltage ratings

• Double-checking the circuit diagram for any errors

• Avoiding reading the datasheets of the components

How can the functionality of a constructed light dependent resistor or other basic sensors

               circuit be tested?

• Disassembling the circuit after construction

• Placing the circuit outdoors for an entire day

• Using a multimeter to measure electrical quantities

• By not connecting the power source to avoid damage

When constructing a light dependent resistor or other basic sensors circuit, what is essential to

                ensure compatibility with the circuit diagram?

• Disregarding the circuit diagram altogether

• Ignoring the specific component placement

• Following the component values listed in the diagram

• Using components not listed in the diagram for innovation

How can you easily identify the cathode of a light-emitting diode?

• Longer leg 

• Shorter leg

• Red color leg

• Blue color leg