Electronics Knowledge Questionnaire

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Basic Level

1. What is the unit of electrical resistance?
 Volt
 Ampere
 Ohm
 Watt

2. Which component stores electrical energy in an electric field?
 Resistor
 Capacitor
 Inductor
 Diode

Intermediate Level

3. What is the purpose of a transistor in a circuit?
 Store energy
 Switch or amplify signals
 Regulate voltage
 Filter signals

4. In which configuration does a transistor act as a switch?
 Common Emitter
 Common Collector
 Common Base
 All configurations

Advanced Level

5. What is the function of a feedback loop in an operational amplifier circuit?
 Improve gain stability
 Increase power consumption
 Reduce input impedance
 Increase noise levels

6. What is the primary function of a phase-locked loop (PLL) in electronics?
 Frequency synthesis
 Voltage regulation
 Signal amplification
 Rectification