Analog-designs Questions Set 94:
The number of noise sources in a BJT (Bipolar Junction Transistor) are:
Solution:
Find the roll-off rate for a filter with an order of 2.
Solution:
The input impedance and the output impedance of an ideal trans-conductance amplifier are:
Solution:
Which of the following components are used in a clamper circuit?
Solution:
The resistance of a coil made of copper wire is 100 Ω at 0 degrees Celsius. Calculate its resistance at 30 degrees Celsius. Given α = 0.004 per degree Celsius.
Solution:
What is the typical value of the pinch-off voltage for a Junction Gate Field-Effect Transistor (JFET)?
Solution:
Statement:
Class B amplifiers suffer from cross-over distortion.
Comment on the above statement.
Solution:
At what firing angle (in degrees) must the SCR of a full-wave rectifier (FWR) be triggered to supply a DC voltage (Vdc) of 60 V to a load, given that the peak AC voltage (Vm) is 155.5 V?
Solution:
The inductance L1 and L2 of a Hartley oscillator are 3 mH and 4.2 mH respectively, and the value of the capacitance C is 12 nF. Calculate the oscillator frequency, neglecting the mutual inductance.
Solution:
Determine the DC output voltage (Vdc) of a half-wave rectifier (HWR) using an SCR (silicon-controlled rectifier). Given the firing angle of 90 degrees and the RMS voltage of the AC input to the rectifier is 230 V.
Solution:
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