Define the operational amplifier parameters (i) Slew rate (ii) Input bias current b) Draw wien bridge oscillator circuit using IC 741 c) List four specification of IC LM324 d) State the four application of an instrumentation amplifier. e) State the four advantages of active filter over passive filter. f) Define roll of rate and order of filter. g) State the function of following pins of IC 555 (i) Threshhold (ii) Discharge 2.a) Describe the block diagram of op-amp b) Explain with neat circuit diagram, the significance of virtual ground in an op-amp. c) Draw the circuit diagram of grounded load type V to I converter and derive expression for its output. d) Sketch the astable multivibrator using IC 555 and explain it. 3.) Describe the basic integrater circuit using op-amp. b) Compare comparator and schimitt trigger circuit (any four points) c) Design a first order low pass filter at a cut off frequency 12KHz with pass band gain '2' (Assume C = 0.01mf) d) Explain the working of IC 555 as a voltage controlled oscillator (VCO) 4.a) Compare open loop and closed loop of configuration of operational amplifier (any four points) b) Sketch the circuit diagram of closed loop non-inverting amplifier and derive expression for it's gain. c) Explain the working of PLL as multiplier using block diagram. d) Draw the neat circuit diagram of first order highpass filter and explain it's operation. e) Explain the block diagram of phase locked loop. 5.a) Explain the function of sample and hold circuit by using op-amp. b) Explain the circuit diagram of logarithmic amplifier using op-amp. c) Sketch the circuit diagram of active wide band reject filter and explain it. 6.a) Sketch the circuit diagram of closed loop inverting amplifier and obtain output expression. b) Explain schmitt trigger circuit using Op-amp and how UTP and LTP are calculated. c) Explain the circuit diagram of phase shift oscillator using op-amp?