MCQ
The impurity to be dopped in pure germanium so as to make it $p$-type semiconductor is :
- Aphosphorous
- Bantimony
- ✓aluminium
- Darsenic
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All of the following statements are true except
|
(a) Conductance is the reciprocal of resistance and is measured in Siemens |
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(b) Ohm's law is not applicable at very low and very high temperatures |
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(c) Ohm's law is applicable to semiconductors |
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(d) Ohm's law is not applicable to electron tubes, discharge tubes and electrolytes |
In the circuit shown in figure the maximum output voltage V0 is
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(a) 0 V |
(b) 5 V |
(c) 10 V |
(d) |
The magnetic susceptibility does not depend upon the temperature in
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(a) Ferrite substances |
(b) Ferromagnetic substances |
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(c) Diamagnetic substances |
(d) Paramagnetic substances |