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Questions and Answers
What is the purpose of a diode in an electronic circuit?
What is the purpose of a diode in an electronic circuit?
- To regulate the voltage
- To amplify the input signal
- To allow current to flow in one direction only (correct)
- To store electrical charge
Which component is used to store electrical charge in an electronic circuit?
Which component is used to store electrical charge in an electronic circuit?
- Resistor
- Transistor
- Capacitor (correct)
- Inductor
What is the function of a transistor in an electronic device?
What is the function of a transistor in an electronic device?
- To provide a stable reference voltage
- To convert AC to DC
- To regulate the current flow
- To amplify or switch electronic signals (correct)
Which of the following is a common application of a Schmitt trigger?
Which of the following is a common application of a Schmitt trigger?
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What is the primary function of an operational amplifier in electronic circuits?
What is the primary function of an operational amplifier in electronic circuits?
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In digital electronics, what does the term 'hysteresis' refer to in the context of a logic gate?
In digital electronics, what does the term 'hysteresis' refer to in the context of a logic gate?
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Study Notes
Electronic Components and Their Functions
- A diode allows current to flow in one direction but blocks it in the other direction, controlling the flow of electrical current in a circuit.
Capacitor Function
- A capacitor is used to store electrical charge in an electronic circuit, filtering or regulating voltage.
Transistor Function
- A transistor acts as a switch or amplifier, controlling the flow of electrical current and amplifying weak electrical signals in an electronic device.
Schmitt Trigger Application
- A Schmitt trigger is commonly used in debouncing circuits, ensuring a clean transition between on and off states by eliminating electrical noise.
Operational Amplifier Function
- The primary function of an operational amplifier in electronic circuits is to amplify weak electrical signals, performing mathematical operations and providing high impedance.
Hysteresis in Digital Electronics
- In digital electronics, hysteresis refers to the difference in input voltage levels that trigger the switching of a logic gate, providing noise immunity and preventing unwanted switching.
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