Cadence Technical Interview Questions For EE And EC Students
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Cadence Technical Interview Questions
01. In the cascade amplifier shown in the figure, if the common-emitter stage (Q1) has a transconductance gm1Â and the common base stage (Q2) has a transconductance gm2Â then the overall transconductance g(=i0 / Vi) of the cascade amplifier is
Options:
a. gm1
b. gm2
c. gm1Â / 2
d. gm2Â / 2
The answer is: a. gm1
Solution:
Q1 has transconductance???
Q2 has transconductance???
Overall transconductance? = i0 / Vi
i0Â = iE2Â = ic1Â so g = gm1
02. In the figure, A2 reads 3 amps, A3 reads 4 amps, A4 reads 8 amps. Find A1 reading.
Options:
a. 10 amps
b. 15 amps
c. 8 amps
d. 16 amps
The answer is b. 15 amps
As the ammeter is reading values and all loads are connected in parallel means we have to add currents.
03. Evaluate for Y at the end of the ex-nor gate and NOT gate at the 20th time when stating one and one are inputs? The figure is shown below
Options:
a. One
b. Zero
c. Both
d. None
The answer is a. One
Solve by yourself by seeing a table of the ex-nor gate.
04. A dc power supply has a no-load voltage of 30 volts, full load voltage of 25 volts at a full load current of 1 amp. Find output resistance and load regulation?
Options:
a. 20 ohm & 30%
b. 10 ohm & 25%
c. 5 ohm & 15%
d. 25 ohm & 20%
The answer is d. 25 ohm & 20%
Solution:
R = V/I = 25/1 = 25 Ohms
Â
Load regulation:
Â
Rth = (Vnl – Vfl)/Ifl
= (30 – 25)/1
Rth = 5 ohms
Â
Load regulation = ((Rth) / (Rl)) * 100
= (5/25) * 100
= 20%
Still, we will update some questions with solutions.
I hope this article “Cadence Technical Interview Questions” may help you all a lot. Thank you for reading.
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