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Q. Explain Current-to-Current Amplifier ?
The circuit given in Figure is to amplify a current fed to the input of the op amp. Applying KCL at Y,
i1 + iS = io
Since i1 = - vY /R1, Equation becomes
iS - vYR1 = io
Because X is a virtual ground, vY =-iSRf . Hence Equation becomes
The current gain is then given by
Since a controlled source acts at its terminals in the same manner as does an independent source, source conversion and application of KCL and KVL relations are treated identically
Using Nyquist theorem, determine the sampling rate for an analog signal with frequencies from 3000Hz to 86000Hz and for a signal with ahorizontal line in th
Large scale integration chips have between (A) Less than 10 components. (B) 10 and 100 components. (C) 100 and 1000 components. (D) More than 1000 componen
breifly explain dual trace cro
With respect to serial communication define the asynchronous communication. Asynchronous implies "no synchronization", and therefore does not require sending and receiving idl
The circuit shown below is a prototype 4 th - order low-pass filter which is required to meet the specification given. However the specification is not met due to inadequate atten
N-type semiconductor is an example of (A) Extrinsic semiconductor. (B) Intrinsic semiconductor. (C) Super conductor. (D) Insulators.
Q. What are transmission bridges? How do they assist in satisfying the connectivity? Ans: A typical transmission bridge is demonstrated in figure. Series capacitance and shunt
Let both coherent ASK and coherent PSK systems transmit the same average energy per bit interval and operate on the same channel such that E b /N 0 = 18. Determine the bit-error p
Write an Assembly language program that will produce a PWM signal with a desired average voltage. The user selects the desired average voltage by pressing keys 1 - 4. If the
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