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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 17
36.
Power transistors are invariably provided with
soldered connections
heat sink
metallic casing
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.

Assertion (A): The ac load line is different from dc load line

Reason (R): The ac load resistance seen by collector and emitter is different from dc load resistance

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
In a class C operation VCC = 40 V and VCE(sat) = 0.4 V. The efficiency is
90%
49.5%
1%
0.5%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
The circuit shown in figure will
oscillate at 456 kHz
oscillate at 228 kHz
oscillate at microwave frequency
not oscillate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The absolute values of pinch-off voltage and gate-source cut-off voltage are
nearly zero
complementary to each other
never equal
equal
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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