Solid State Devices

101. It is also known as a solid state lamp which utilizes the fall of an electron from the conduction level to the valence level to develop an energy release in the form of heat or light.

  1. LCD
  2. LED
  3. Photodiode
  4. Photoconductive cell

Correct answer: (B)
LED

102. It is an arrangement of silicon atoms combine to form a solid such that there are now 8 electrons in the valence shell.

  1. Crystal
  2. Bonding
  3. Recombination
  4. Solid silicon

Correct answer: (A)
Crystal

103. It is the current gain for the common-emitter configuration

  1. a
  2. fl
  3. 8
  4. p

Correct answer: (B)
fl

104. It is the process by which atoms are constantly losing and regaining free electrons.

  1. Ionization
  2. Covalent bond
  3. Recombination
  4. Parasitism

Correct answer: (A)
Ionization

105. It refers to any of the over 100 different substances which have never been separated into simpler substances by chemical means and which alone or in combination constitute all matter.

  1. Elements
  2. Atom
  3. Holes
  4. Electrons

Correct answer: (A)
Elements

106. Its maximum amount of reverse voltage which can be applied on a diode before breakdown point is reached.

  1. Zener voltage
  2. Peak inverse voltage
  3. Breakdown voltage
  4. Threshold voltage

Correct answer: (B)
Peak inverse voltage

107. JFET's input impedance is

  1. Approaches unity
  2. Approaches zero
  3. Approaches infinity
  4. Is unpredictable

Correct answer: (C)
Approaches infinity

108. Junction diodes are commonly rated by its

  1. Maximum current and PIV
  2. Inductance and PIV
  3. Capacitance and maximum reverse current
  4. Circuits resistance and maximum forward current

Correct answer: (A)
Maximum current and PIV

109. K shell means

  1. First orbit
  2. 2nd orbit
  3. 3rd orbit
  4. 4th orbit

Correct answer: (A)
First orbit

110. Lifetime is the amount of time between the creation and disappearance of a/an

  1. Free electron
  2. Proton
  3. Ion
  4. Neutron

Correct answer: (A)
Free electron

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