The most commonly used semiconductor in the manufacture of a transistor is ___________

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

The most commonly used semiconductor is ___________

A

Germanium

B

Silicon

C

Carbon

D

Sulphur

The impurity level in an extrinsic semiconductor is about of pure semiconductor.

A

10 atoms for 108 atoms

B

1 atom for 108 atoms

C

1 atom for 104 atoms

D

1 atom for 100 atoms

নিম্নের কোনটি p-টাইপ অর্ধপরিবাহীতে n-টাইপ অর্ধপরিবাহীর তুলনায় বেশি আছে? (Which of the following does a p-type semiconductor have more compared to an n-type semiconductor-)

A

মোট ধনাত্মক আধান (total positive charge)

B

মোট আধান (total charge)

C

ইলেকট্রন ঘনত্ব (density of electrons)

D

হোল ঘনত্ব (density of holes)

In order to get more voltage gain from a transistor amplifier, the transistor used should have ___________

A

Thin base

B

Thin collector

C

Wide emitter

D

None of the above

The most commonly used transistor arrangement is ___________ arrangement

A

common emitter

B

common base

C

common collector

D

none of the above

In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of ___________

A

RC + RL

B

RC || RL

C

RL

D

RC

For faithful amplification by a transistor circuit, the value of VBE should ___________ for a silicon transistor

A

Be zero

B

Be 0.01 V

C

Not fall below 0.7 V

D

Be between 0 V and 0.1 V

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

For faithful amplification by a transistor circuit, the value of VCE should ___________ for silicon transistor

A

Not fall below 1 V

B

Be zero

C

Be 0.2 V

D

None of the above

The most commonly used semiconductor in the manufacture of a transistor is ___________

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