- Which of the following has highest conductivity?
a) Silver b) Aluminum c) tungsten d) Platinum
- At room temperature barrier potential in a silicon diode is
a) 0.1 V b) 0.3V c) 0.7V d) 1V
- In which mode of BJT operation are both junctions reverse biased
a) active b) saturation c) cut-off d) reverse active
- The sensitivity of human eyes is maximum at
a) white portion of spectrum b) green portion of spectrum
c) red portion of spectrum d) violet portion of spectrum
- Which quantity controls the effectiveness of LED in emitting light
a) applied voltage b) current c) extent of doping d) temperature
- The abbreviation EMG stands for ____________________
- The number of bits in a nibble is
a) 8 b) 4 c) 16 d) 32
- The frequency spectrum of FM radio broadcasting is
a) 565 KHz – 1605 Khz b) 88 MHz – 108 MHz
c) 3 GHz – 30 GHz d) None of the above
- Which of the following is an OP-AMP IC
a) BC107 b) 74LS00 c) mA 741C d) AE137
- Which of the following medium has highest bandwidth
a) Twisted pair b) optical fiber cable c) coaxial cable
d) copper strip
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