Electronic Devices
JKSSB Sub-Inspector (Telecommunication) · Electronic Devices, Analog Circuits & Network Theory · 14 practice questions with answers and explanations: 4 Easy, 6 Medium, 4 Hard.
Sample questions
Sample Easy question 1
What type of material is a semiconductor, in terms of conductivity?
- A material with conductivity between that of a conductor and an insulator
- A perfect conductor
- A perfect insulator
- A material that conducts only at very low temperatures
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Answer: A. Semiconductors have conductivity intermediate between conductors and insulators, and can be controlled by doping.
Sample Medium question 2
What does 'MOSFET' stand for?
- Metal-Oxide-Semiconductor Field-Effect Transistor
- Metal-Oxide Semiconductor Fast Electronic Transistor
- Multi-Output Semiconductor Field Transistor
- Metal Only Semiconductor Field Effect Transistor
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Answer: A. MOSFET stands for Metal-Oxide-Semiconductor Field-Effect Transistor.
Sample Hard question 3
What is the primary application of an LED (Light Emitting Diode)?
- Emitting light when forward biased
- Detecting light only
- Amplifying current
- Storing charge
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Answer: A. An LED emits light when current flows through it in the forward-biased direction.