AP EAMCET · PHYSICS · Semiconductors
A transistor has 3 impurity regions of different doping levels. In the order of increasing doping level, the regions are
- A \(\text { emitter, base, collector }\)
- B \(\text { collector, base, emitter }\)
- C \(\text { base, emitter, collector }\)
- D \(\text { base, collector, emitter }\)
Answer & Solution
Correct Answer
(D) \(\text { base, collector, emitter }\)
Step-by-step Solution
Detailed explanation
NO SOLUTION
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- A point source of electromagnetic radiation has an average power output of \(960 \mathrm{~W}\). The peak value of the electric field at a distance \(400 \mathrm{~cm}\) from the source isAP EAMCET 2019 Easy
- Assertion (A) : When a vehicle takes a turn on the road, it travels along a curved path.
Reason (R): In a curved path, velocity of vehicle remains same.AP EAMCET 2017 Easy - An infinite line charge produces a field of \(9 \times 10^4 \mathrm{NC}^{-1}\) at a distance of \(2 \mathrm{~cm}\). The linear charge density isAP EAMCET 2023 Medium
- A small disc of mass \(m\) slides down with initial velocity zero from the top \((A)\) of a smooth hill of height \(H\) having a horizontal portion \((B C)\) as shown in the figure. If the height of the horizontal portion of the hill is \(h\), then the maximum horizontal distance covered by the disc from the point \(D\) is
AP EAMCET 2022 Medium - The angle between the axes of a polariser and an analyser is \(45^{\circ}\). If the intensity of the unpolarized light incident on the polariser is 1 , then the intensity of the light emerged from the analyser isAP EAMCET 2024 Easy
- Two coherent sources \(S_1, S_2\) and a screen are arranged as shown in the figure. If the distance between the two coherent sources is \(n \lambda\) and the distance of the screen from the nearer coherent source is D, then the distance of the first bright fringe on the screen from the point ' \(\mathrm{O}\) ' is
( \(\lambda\) is the wavelength of the light emitted by the coherent sources )
AP EAMCET 2018 Medium
More PYQs from AP EAMCET
- Energy of a stationary electron in the hydrogen atom is then the energies required to excite the electron in hydrogen atom to (a) its second excited state and (b) ionized state respectivelyAP EAMCET 2022 Medium
- Two electrons, and of mass and charge are injected into the perpendicular direction of the magnetic field such that the kinetic energy of is double than that of . The relation of their frequencies of rotation, and isAP EAMCET 2022 Hard
- \(\int_0^{\frac{\pi}{2}} \frac{\sum_{n=0}^4\left(\frac{n \pi}{4}+x\right)}{\cos x+\sin x} d x=\)AP EAMCET 2023 Hard
- Two particles execute simple harmonic motion along the same straight line with same amplitude and same frequency. The two particles pass one another when moving in opposite directions each time at a distance of \(\frac{1}{\sqrt{2}}\) times the amplitude from their common mean position. The phase difference between the two particles isAP EAMCET 2023 Easy
- An ideal Carnot's engine with an efficiency of \(30 \%\) operates between a source and a sink. If the temperature of the source is \(500 \mathrm{~K}\), that of the sink isAP EAMCET 2020 Easy
- Which of the following is NOT a reversible process?AP EAMCET 2021 Easy