| 1 |
The symbol of p-n-p transistor is |
|
| 2 |
In a certain circuit, IB = 40 µA, IC = 20 mA |
450 amp
0.45 amp
5 m amp
500 amp
|
| 3 |
The circuit of full wave rectification consist of |
Three diodes
Four diodes
Two diodes
One diode
|
| 4 |
The potential difference across depletion region in case of Si is |
0.6 volt
0.9 volt
0.7 volt
0.2 volt
|
| 5 |
The semi conductor diode has the property of |
Two way conduction
Zero conduction
One way conduction
Amplification
|
| 6 |
The impurity in the germinium is usually in the ratio of |
1:10<sup>6</sup>
1:10<sup>4</sup>
1:10<sup>8</sup>
1:10<sup>10</sup>
|
| 7 |
The average gap for Germanium at 0K is |
1.12 ev
0.02 ev
6.72 ev
7.2 ev
|
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