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WorksheetsB1A Electro 2 Final Quiz
Total questions: 20
Worksheet time: 10mins
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
What seems to happen if the LED are connected in reverse bias? The LED will act as _________ switch.
closed
knife
open
pushbutton
Can you distinguish between the two terminal of the light-emitting diode, which one is the anode?
Anode terminal is longer than the cathode
Anode terminal is shorter than the cathode
Anode side terminal has a flat-sided bottom
Both anode and cathode terminal are same in length
For LED to operate properly, __________ is connected to positive terminal of the supply
and the __________ is connected to the negative terminal of the supply.
A+, K+
K-, A-
cathode, anode
anode, cathode
When diodes are forward bias, with LED as load, what will happen to the LED?
Busted
Opened
Turned-OFF
Turned-ON
What is the main function of light-emitting diode.?
Indicator
Controller
Circuit protection
Current suppressor
It is an electronic components that opposes the flow of current.
Capacitor
Fuse
Resistor
Transistor
In an electrical circuit diagram, resistors are used as ___________________ .
current limiter
voltage stopper
circuit protection
lightning arrester
What would be the result in a simple circuit of light-emitting diode if the resistor are remove?
The light-emitting diode’s status will ____________________.
turn on
be damaged
still work properly
depend on the applied voltage
What type of diagram uses symbols to represent components rather than pictorial representations?
Block
Circuit
System
Wiring
What is the primary purpose of a block diagram in electronics?
Analyze data
Detail connections
Show physical layout
Provide a system overview
