Electronic Devices — practice questions
23 curated practice questions from Electronic Devices (Physics NEET, NTA Exams) — 10 easy, 8 medium, 5 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480…
- In a reverse biased diode when the applied voltage changes by 1 V, the current is found to change by 0.5 μA. The…
- Barrier potential of a p-n junction diode does not depend on:
- In the middle of the depletion layer of a reverse biased p-n junction, the
- The dominant mechanisms for motion of charge carriers in forward, reverse biased silicon p-n junction are
- For a given plate voltage, the plate current in a triode valve is maximum when the potential of
- Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following…
- The forward voltage in a diode is increased, the width of the depletion region:
- The dominant contribution to current comes from holes in case of
- The valence band and conduction band of a solid overlap each other at low temperature, the solid may be:
- A solid whose conductivity increases with temperature is formed by
- The electric circuit used to get smooth D.C output from a rectifier circuit is called:
- When the conductivity of a semiconductor is only due to the breaking of covalent bonds, the semiconductor is called :
- A LED is constructed from a p-n junction diode using GaAsP. The energy gap is 1.9 eV. The wavelength of the light…
- Given below are two statements: Statement I : Photovoltac devices can convert optical radiation into electricity…
- Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- A p-type extrinsic semiconductor is obtained when Germanium is doped with
- For a p-type semiconductor, which of the following statements is true?
- If the lattice constant of this semiconductor is decreased, then which of the following is correct? conduction band…
- In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be
- array l (a) (b) (c) array In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are…
- The barrier potential of a p-n junction depends on: type of semi conductor material amount of doping temperature Which…
- Which one of the following represents forward bias diode?