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a. Describe what you understand by 'offset voltage' and 'offset current' of op-amp. Discuss with a neat circuit diagram the method used for minimizing offset voltage and offset current in an inverting amplifier. (10)
b. Measure the output voltage 'V0' for the following non-inverting op-amp summer with V1 =2V and V2 = -1V
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force and torque in magnetic field system
Q. A JK flip-flop is shown in Figure (a). (a) Modify it to operate like the D flip-flop of Figure (b). (b) Modify the JK flip-flop to operate like the T flip-flop of Figure (
A pure sine wave along with a frequency of 100Hz is sampled at 150Hz. At which point one of the subsequent frequencies would you expect an alias? A) 75Hz B) 100Hz C) 150Hz
Demodulation of SSB signals also requires the use of a phase-coherent reference. Figure shows the general configuration to demodulate the SSBsignal.Asmall carrier component, which
Q. A three-phase, 600-kVA, 2300:230-V,Y-Y trans-former bank has an iron loss of 4400Wand a full-load copper loss of 7600 W. Find the efficiency of the transformer for 70%full load
Q. Open-loop control system? An open-loop system is one in which the control action is independent of the output or desired result, whereas a closed-loop (feedback) system is o
High Pressure Gas Hazards When we consider the dangers of compressed gas in the lab, there are three main sources of danger as follows: 1) Sudden release of high pressure ga
Q. Write a note on the application of emitter-follower? An emitter follower can serve as a buffer for a voltage source. The voltage divider at left is a poor voltage source bec
The armature of a d.c. machine has a resistance of 0.3 and is connected to a 200V supply. Calculate the e.m.f. generated when it is running (a) as a generator giving 80A (b) as a
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