Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise :: Electronic Devices and Circuits - Section 15
| 6. |
Figure represents a
 |
| A. |
Diode rectifier | | B. |
Schottky diode | | C. |
Varistor | | D. |
None of the above |
Answer: Option B
Explanation:
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| 7. |
The output, V-I characteristics of an Enhancement type MOSFET has |
| A. |
only an ohmic region | | B. |
only a saturation region | | C. |
an ohmic region at low voltage value followed by a saturation region at higher voltages | | D. |
an ohmic region at large voltage values preceded by a saturation region at lower voltages |
Answer: Option C
Explanation:
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| 8. |
Piezoelectric quartz crystal resonators find application where |
| A. |
signal amplification is required | | B. |
rectification of the signal is required | | C. |
signal frequency control is required | | D. |
modulation of signal is required |
Answer: Option B
Explanation:
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| 9. |
The forbidden energy gap between the valence band and conduction band will be least in case of |
| A. |
metals | | B. |
semiconductors | | C. |
insulators | | D. |
all of the above |
Answer: Option A
Explanation:
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| 10. |
If too large current passes through the diode |
| A. |
all electrons will leave | | B. |
all holes will freeze | | C. |
excessive heat may damage the diode | | D. |
diode will emit light |
Answer: Option C
Explanation:
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