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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 10
41.
The output characteristics of a bipolar transistor has three distinct regions. They are known as
saturation region, active region and breakdown region
inactive region, active region and breakdown region
inactive region, saturation region and active region
inactive region, saturation region and breakdown region
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.

Assertion (A): In a BJT, adc is about 0.98.

Reason (R): In a BJT, recombination in base region is high.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Wienbridge oscillator uses
-ve feedback
+ve feedback
both +ve, -ve feedback
feedback is not required
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Which of the following material is preferred for transformer cores operating in micro wave frequency range?
Ferrites
Silicon steel
Superalloy
Copper
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
The ac resistance of a forward biased p-n junction diode operating at a bias voltage V and carrying current 'I' is
0
constant value independent of V and I
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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