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प्रश्न और उत्तर
Which colors are typically used for the signal wire in an Arduino setup?
Which colors are typically used for the signal wire in an Arduino setup?
- Yellow, Orange, or White (सही)
- Green, Blue, Black
- Red, Green, Blue
- Black, Yellow, White
What is the primary reason for using an external power supply for motors that consume more than 300 mA?
What is the primary reason for using an external power supply for motors that consume more than 300 mA?
- To increase the voltage supplied to the motor
- To prevent damage to the Arduino (सही)
- To ensure the motor runs at maximum speed
- To improve the efficiency of the motor
What does the Collector Current (IC) of a transistor represent?
What does the Collector Current (IC) of a transistor represent?
- The voltage drop across the transistor
- The amount of current the transistor can support (सही)
- The input voltage required for operation
- The maximum temperature the transistor can withstand
How can RGB LEDs produce different colors?
How can RGB LEDs produce different colors?
What is the behavior of current flow through a diode?
What is the behavior of current flow through a diode?
What happens to a photoresistor's resistance when it is exposed to light?
What happens to a photoresistor's resistance when it is exposed to light?
If a photoresistor has very high resistance in the dark, what can its resistance drop to when exposed to light?
If a photoresistor has very high resistance in the dark, what can its resistance drop to when exposed to light?
What is the function of the NPN transistor in circuits?
What is the function of the NPN transistor in circuits?
What effect does an increase in temperature have on ultrasonic sensor sound waves?
What effect does an increase in temperature have on ultrasonic sensor sound waves?
How can the sensitivity of an ultrasonic sensor be adjusted?
How can the sensitivity of an ultrasonic sensor be adjusted?
What happens when voltage is applied to a piezo element?
What happens when voltage is applied to a piezo element?
What is the recommended voltage range for powering devices that use piezo elements?
What is the recommended voltage range for powering devices that use piezo elements?
What is a potential risk when using a multimeter?
What is a potential risk when using a multimeter?
Why should you be careful with static electricity when handling ultrasonic sensors?
Why should you be careful with static electricity when handling ultrasonic sensors?
What happens to the output delay when adjusting the TIME potentiometer on a sensor?
What happens to the output delay when adjusting the TIME potentiometer on a sensor?
How do ultrasonic sensors measure distance to an object?
How do ultrasonic sensors measure distance to an object?
What is a primary function of a piezo buzzer in electronic projects?
What is a primary function of a piezo buzzer in electronic projects?
Which component is essential for controlling the brightness of an RGB LED?
Which component is essential for controlling the brightness of an RGB LED?
What safety measure should be taken when working with batteries?
What safety measure should be taken when working with batteries?
What is the main purpose of a PIR motion sensor?
What is the main purpose of a PIR motion sensor?
Which statement is true regarding the use of a multimeter?
Which statement is true regarding the use of a multimeter?
What is a common use for a vibration motor in electronics?
What is a common use for a vibration motor in electronics?
Which component is NOT typically found in a basic LED circuit?
Which component is NOT typically found in a basic LED circuit?
What does a photoresistor do in a circuit?
What does a photoresistor do in a circuit?
What should never be done with the power and ground connections in a circuit?
What should never be done with the power and ground connections in a circuit?
When should batteries or power supplies be connected to a circuit?
When should batteries or power supplies be connected to a circuit?
What happens if V+ and Ground are connected incorrectly?
What happens if V+ and Ground are connected incorrectly?
What is true about the terminals of a vibration motor?
What is true about the terminals of a vibration motor?
What must be done before connecting a motor directly to a battery?
What must be done before connecting a motor directly to a battery?
What is a consideration when wiring a continuous rotation servo?
What is a consideration when wiring a continuous rotation servo?
What should not be done when driving a motor from an Arduino board?
What should not be done when driving a motor from an Arduino board?
How are the ground wires supposed to be connected when using a separate power supply for a servo?
How are the ground wires supposed to be connected when using a separate power supply for a servo?
What is the purpose of the middle pin in a potentiometer when used as a voltage divider?
What is the purpose of the middle pin in a potentiometer when used as a voltage divider?
Why are electrolytic capacitors unique compared to other types of capacitors?
Why are electrolytic capacitors unique compared to other types of capacitors?
What happens if an electrolytic capacitor is wired with the cathode connected to a higher voltage?
What happens if an electrolytic capacitor is wired with the cathode connected to a higher voltage?
What characteristic makes ceramic capacitors less likely to leak current?
What characteristic makes ceramic capacitors less likely to leak current?
What is the role of bus strips on a breadboard?
What is the role of bus strips on a breadboard?
What can cause battery leakage?
What can cause battery leakage?
What is the primary use of a potentiometer as a rheostat?
What is the primary use of a potentiometer as a rheostat?
What demonstrates that a capacitor is polarized?
What demonstrates that a capacitor is polarized?
फ्लैशकार्ड्स छिपे हुए हैं जब तक कि आप अध्ययन शुरू नहीं करते
अध्ययन नोट्स
Potentiometers
- Potentiometers function as adjustable resistors with three terminals, allowing control over resistance in a circuit.
- Used as a voltage divider, where one outer pin connects to GND, the other to Vcc, and the middle pin provides voltage output.
Capacitors
- Ceramic Capacitors:
- Small charge storage, low leakage current, and cost-effective.
- Electrolytic Capacitors:
- Polarized with a positive (anode) and negative (cathode) pin; incorrect orientation can cause damage or explosion.
Batteries
- Proper handling prevents leakage; dispose of leaking batteries carefully.
- Avoid direct battery connections that could short circuit; connect power last for safety.
Breadboards
- Socket strips allow connectivity across rows for circuit design.
- Vertical bus strips distribute power but should not connect directly to ground.
Motors
- Vibration Motors:
- Two terminals; polarity does not affect operation.
- DC Motors:
- Two leads control rotational direction, avoid connecting directly to Arduino pins to prevent damage.
Servo Motors
- Continuous rotation servos control speed and direction but not exact positioning.
- Requires power, ground, and signal wires; external power recommended if consumption exceeds 300 mA.
Transistors
- NPN and PNP transistors control power flow, with Collector Current (IC) being crucial for selection.
LEDs
- RGB LEDs combine three colors (Red, Green, Blue) for color output; alternating intensities of internal LEDs produces various colors.
- Current can only flow in one direction through diodes, referred to as forward direction.
Sensors
- Photoresistors (LDR):
- High resistance in darkness, low resistance in light used to detect light presence.
- Ultrasonic Sensors:
- Temperature affects sound wave travel time; can misinterpret distance based on environmental conditions.
- Heat Sensors:
- Sensitivity and time settings adjustable via potentiometers for detecting heat energy.
Piezo Buzzers
- Generate sound through voltage applied, causing physical vibrations.
Safety Precautions
- Exercise caution with static electricity and high voltages; always check for AC and DC voltage presence when using multimeters.
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