The resistivity of pure germanium under standard conditions is about_______________?

Related Mcqs:

1. The resistivity of a pure silicon is about _______________?

   A. 100 O cm
   B. 6000 O cm
   C. 3 x 105 O m
   D. 6 x 10-8 O cm

2. The output of a microphone is rated at -52 db. The reference level is 1V under specified conditions. What is the output voltage of this microphone under the same sound conditions?

   A. 5 mV
   B. 2 mV
   C. 8 mV
   D. 5 mV

3. In RC coupling, the value of coupling capacitor is about_______________?

   A. 100 pF
   B. 0.1 µF
   C. 0.01 µF
   D. 10 µF

4. The barrier voltage at a pn junction for germanium is about________________?

   A. 5 V
   B. 3 V
   C. Zero
   D. 0.3 V

   Updated by: Abdul Samad

5. The leakage current in a silicon transistor is about_____________ the leakage current in a germanium transistor?

   A. One hundredth
   B. One tenth
   C. One thousandth
   D. One millionth

6. For germanium transistor amplifier, VCE should_______________for faithful amplification?

   A. Be zero
   B. Be 0.2 V
   C. Not fall below 0.7 V
   D. None of the above

7. The unit of resistivity is

   A. Ω.
   B. Ω – metre.
   C. Ω / metre.
   D. Ω / m².

8. The resistivity of the conductor depends on

   A. area of the conductor.
   B. length of the conductor.
   C. type of material.
   D. none of these.

9. If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?

   A. 20 V
   B. 5 V
   C. 2 V
   D. 10 V

10. As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor_______________?

    A. Remains the same
    B. Increases
    C. Decreases
    D. None of the above