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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 5
1.
A JFET operates in ohmic region when
VGS = 0
VGS is less than pinch off voltage
VGS = is Positive
VGS = VDS
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
In CE connection, the leakage current of a transistor is about
10 x 10-9 A
5 x 10-6 A
200 x 10-6 A
5 x 10-3 A
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The early effect in a BJT is caused by
fast turn on
fast turn off
large collector base reverse bias
large emitter base forward bias
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
In a common emitter BJT amplifier, the maximum usable supply voltage is limited by
avalanche Beakdown of Base-Emitter junction
collector emitter breakdown voltage with base open(βVCEO)
collector emitter breakdown voltage with emitter open(βVCEO)
zener break down voltage of the emitter base junction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.

Assertion (A): In active region of CE output characteristics of BJT, collector current is nearly constant.

Reason (R): Base current in CE connection is very small.

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.
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