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Q. Explain about Differentiator?
Shown in Figure is a differentiator which is obtained by replacing R1 in the inverting amplifier of Figure by a capacitor C. Assuming ideal op-amp characteristics, one has i = iC and vo = - Ri = - RiC. But since iC (t) = Cdvin (t) /dt ,we get
vo (t) = - RC dvin (t) / dt
which corresponds to a differentiator with a gain of -RC. In practice, however, differentiators are normally avoided because of high-frequency noise (which is accentuated due to a transfer function that increases with frequency) and stability problems (which make them oscillate).
Consider an electromagnet, as shown in Figure, which is used to support a solid piece of steel and is excited by a coil of N = 1000 turns carrying a current i = 1.5 A. The cross-se
what is circular convolution
Q. Explain various functions of telephone switching systems. Ans: Functions of telephone switching systems are: (i) Attending: The system should be continually monito
High Voltage Distribution System or HVDS Adoption of HVDS (High Voltage Distribution System) through converting existing LVDS to HVDS reduces the technical losses appreciably.
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What are the causes of sparking in the commutator? Explain the methods to reduce the sparking in the commutator?
Prepaid Metering Prepaid metering is the state of art for single and three-phase although current metering, and should be implemented through utilities desirous of protecting
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