1. The basic component of an integrated circuit is:
Answer:
Explanation:
The fundamental building block of an integrated circuit (IC) is the transistor, used for amplification and switching.
2. A diode primarily functions to:
Answer:
Explanation:
A diode is a semiconductor device that allows current to flow in one direction while blocking it in the opposite direction.
3. The purpose of a resistor in a circuit is to:
Answer:
Explanation:
Resistors are used in circuits to control or limit the flow of electrical current.
4. Which of the following is a passive electronic component?
Answer:
Explanation:
A capacitor is a passive electronic component that stores electrical energy in an electric field.
5. Ohm's Law states that:
Answer:
Explanation:
Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
6. The type of capacitor which is polarized is:
Answer:
Explanation:
Electrolytic capacitors are polarized components, meaning they have a positive and a negative side.
7. The main difference between AC and DC current is:
Answer:
Explanation:
The primary difference between AC (Alternating Current) and DC (Direct Current) is the direction in which the electrons flow. AC changes direction periodically, while DC flows in one direction only.
8. An operational amplifier (Op-Amp) has _____ inputs and _____ output(s).
Answer:
Explanation:
An operational amplifier typically has two inputs (inverting and non-inverting) and one output.
9. A Zener diode is used primarily for:
Answer:
Explanation:
Zener diodes are used for voltage regulation, as they can maintain a constant voltage over a range of current.
10. The main advantage of using an LED over a traditional bulb is:
Answer:
Explanation:
LEDs (Light Emitting Diodes) are preferred for their longer lifespan and lower power consumption compared to traditional bulbs.
11. A transistor can be used as a:
Answer:
Explanation:
Transistors are commonly used as switches and amplifiers in various electronic circuits.
12. The bandwidth of an amplifier is the range of frequencies:
Answer:
Explanation:
The bandwidth of an amplifier is the range of frequencies over which the amplifier can maintain a constant gain.
13. The primary function of a rectifier is to:
Answer:
Explanation:
A rectifier is an electronic device that converts alternating current (AC) to direct current (DC).
14. In a series RLC circuit at resonance, the impedance is:
Answer:
Explanation:
At resonance in a series RLC circuit, the inductive and capacitive reactances cancel each other out, resulting in minimum impedance.
15. The gain of an amplifier without feedback is known as:
Answer:
Explanation:
Open-loop gain refers to the gain of an amplifier without any feedback applied to it.
16. A circuit that generates a periodic waveform of a specified frequency is known as:
Answer:
Explanation:
An oscillator is an electronic circuit that produces a repetitive, oscillating electronic signal, often a sine wave or a square wave.
17. The purpose of a filter in an electronic circuit is to:
Answer:
Explanation:
Filters are used in electronic circuits to remove unwanted components or features from a signal.
18. A Schottky diode is characterized by:
Answer:
Explanation:
Schottky diodes are known for their low reverse recovery time, making them useful in high-speed switching applications.
19. The main purpose of a heat sink in electronic devices is to:
Answer:
Explanation:
A heat sink is used to dissipate heat from electronic components, preventing overheating and damage.
20. The material commonly used for making solar cells is:
Answer:
Explanation:
Silicon is widely used in the manufacturing of solar cells due to its semiconductor properties.
21. In a voltage divider circuit, the output voltage across a resistor is:
Answer:
Explanation:
In a voltage divider, the output voltage across a resistor is a fraction of the input voltage, determined by the resistor values.
22. The function of a bleeder resistor in a power supply is to:
Answer:
Explanation:
A bleeder resistor provides a constant load to discharge the capacitors when the power supply is turned off, ensuring safety.
23. The unit of electrical charge is:
Answer:
Explanation:
The unit of electrical charge is the Coulomb, which measures the quantity of electricity transferred.
24. In digital circuits, the term 'Propagation Delay' refers to:
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Explanation:
Propagation delay is the time it takes for the input of a logic gate to cause a change in its output.
25. The phenomenon where an inductor opposes changes in current is known as:
Answer:
Explanation:
Inductance is the property of an inductor to oppose changes in current flowing through it, due to the magnetic field created by the current.