Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

For generating 1 MHz frequency signal, the most suitable circuit is
A:
phase shift oscillator
B:
weinbridge oscillator
C:
colpitt's oscillator
D:
clapp oscillator
Answer: C
No answer description is available. Let's discuss.
The unit of thermal resistance of a semi-conductor device is
A:
Ohms
B:
Ohms/°C
C:
°C/ohm
D:
°C/watt
Answer: D
No answer description is available. Let's discuss.
In a JFET the width of channel is controlled by
A:
gate voltage
B:
drain current
C:
source current
D:
all of the above
Answer: A
No answer description is available. Let's discuss.
Photo electric emission can occur only if the frequency of light is more than threshold frequency.
A:
True
B:
False
C:
D:
Answer: A
No answer description is available. Let's discuss.
High purity copper is obtained by
A:
rolling casting
B:
casting
C:
electrolytic refining
D:
induction heating
Answer: C
No answer description is available. Let's discuss.
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