91. One eV is equal to . . . . . . . . J.
92. An n-type of silicon can be formed by adding impurity of:
1. Phosphorous
2. Arsenic
3. Boron
4. Aluminium
Which of the above are correct?
1. Phosphorous
2. Arsenic
3. Boron
4. Aluminium
Which of the above are correct?
93. Which of the following does not show non-linear V-I characteristics?
94. In a p-type semiconductor, acceptor concentration is 1013/cm3 and intrinsic concentration is 1.5 × 1016/cm3, then find electron concentration?
95. When a junction diode is used in switching applications, the forward recovery time is
96. A semi conductor is irradiated with light such that carriers are uniformly generated throughout its volume. The semiconductor is n-type with ND = 1019/cm3. If the excess electron concentration in the steady state is ∆n = 1015/cm3 and if τp = 10µsec. (minority carrier life time) the generation rate due to irradiation
97. The solar or photo voltaic cell converts:
98. Silicon has a preference in IC technology because
99. For a common-base BJT configuration having IC = 5 mA and α = 0.97, an AC signal of 5 mV is applied between the base and emitter terminals. What is the value of output impedance and current gain?
100. The unit of mobility is
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