Analog-designs Questions Set 29:
Find the phase shift in output when a low pass filter of non-inverting type has a cutoff frequency of 3 kHz and an input frequency of 12 kHz.
Solution:
With the positive probe of an ohmmeter on the base of an NPN transistor, the reading between the other two terminals should be:
Solution:
Which of the following is not considered for determining the quiescent operating point of an amplifier?
Solution:
Neglecting Channel Length Modulation, if the aspect ratio (width/length) of the MOSFET increases, the gain of the follower stage will:
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Statement 1: RC oscillator is a low-frequency oscillator, and LC oscillator is a high-frequency oscillator.
Statement 2: Both RC and LC oscillators have good amplitude stability.
Solution:
How does the reverse saturation current of a semiconductor device change due to a 10°C increase in temperature?
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In a feedback network, the input voltage is 14V, the feedback voltage is 6V, and the source voltage is 20V. The feedback factor β is in Ω. What is the configuration of the feedback network?
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How can a monostable multivibrator using IC 555 be used as a PWM (Pulse Width Modulation) generator?
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Which of the following statements about transistor modeling are correct?
1. The parameter of re model cannot be derived directly from the hybrid parameters in the particular operating region
2. The re model suffers from being restricted by a particular set of operating conditions, if it is to be considered accurate
Solution:
Consider the following statements about a Metal Oxide Semiconductor Field Effect Transistor (MOSFET):
P. As channel length reduces, off-state current increases.
Q. As channel length reduces, output resistance increases.
R. As channel length reduces, threshold voltage remains constant.
S. As channel length reduces, on-current increases.
Which of the above statements are incorrect?
Solution:
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