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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 20
16.
In figure VCC = + 30 V, IC corresponding to Q point is 1 mA. If RC = 5 kΩ and RE = 5 kΩ, VCE corresponding to Q point is
30 V
20 V
25 V
5 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Symbol shown in figure represents a
Enhancement only N-channel MOSFET
UJT with p-type base
N-channel DMOSFET with internal protection
Phototransistor
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
In which of the following circuits is op-amp used in open loop configuration?
Comparator
Summing amplifier
Integrating amplifier
Logarithmic amplifier
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In the op-amp circuit of figure, V0 =
3 V1 - 4 V2
-3 V1 + 4 V2
3(V1 - V2)
-3(V1 - V2)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
In a diode rectifier with a capacitance input filter, a surge current is likely to flow when the circuit is switched on. The cause of this surge current is
the non linear behaviour of diodes
the capacitor acts as a short circuit at the instant of switching,
the inductance of leads
both (a) and (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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