Given the four statements, which of the following statements are not true about the operation of an op-amp? i. Op-amp's close loop operation employs negative feedback that takes portion of the output and applics it back out of phase with the input. ii. In an op-amp, amplification of the common input signals is much less than that of the opposite input signals. iii. In open-loop operation, the output of the op-amp is driven to saturation with Vo +Vsat. iv. Op-amp's close loop operation employs positive feedback that takes portion of the output and applies it back out of phase with the input. O i, III, IV O i, iv Oi i i O i,iv

Q2/B)- Show the connection of three combination op-amp stages ( Parallel and series connection) using an LM348 IC to provide outputs that are 110, 400, and 2601 times larger than the input. Use a feedback resistor of Rf = 500 kN in all stages, while can use only (R= 50 kN for first stage), (R= 25 k2 for second stage), and (R= 10 k2 for third stage)

Figure 3 shows a Hartley oscillator. Assume that the op-amp employed in the figure is an ideal op-amp, and R1= 20 kΩ, R2 = 60 kΩ, L1=10 mH.  b) State the Barkhausen criterion for sustained oscillation.c) Explain briefly how the phase shift requirement for sustained oscillation ismet in the circuit of Figure 3.d) The feedback ratio and oscillation frequency of Figure 3 are givenrespectively by, B = -L2/L1 and w0 = 1 / sqrt(L1 +L2)C Determine the values of C and L2 in order for the circuit to oscillate at a frequency of 200 Hz.

The midrange open-loop gain, "Aol(mid)" of a certain op-amp is 80,000. If the open-loop critical frequency is 1 kHz, what is the open-loop gain, "Aol" at each of the following frequencies? (a)100 Hz (b)  1 MHz

Q2. Distinguish between an Inverting and Non-inverting op-amp.

Given the four statements, which of the following statements are not true about the operation of an op-amp? i. Op-amp's close loop operation employs negative feedback that takes portion of the output and applies it back out of phase with the input. 1i. In an op-amp, amplification of the common input signals is much less than that of the opposite input signals. iii. In open-loop operation, the output of the op-amp is driven to saturation with Vo- +Vsat. iv. Op-amp's close loop operation employs positive feedback that takes portion of the output and applies it back out of phase with the input. O i, iii, iv O i, iv O i i, ii O i, iv

1. The negative feedback circuits are of types (d) Four (a)One (b) Two (c) Three 2. A device with direct current coupled, high gain electronic voltage type amplifier with one output and differential input is called (a)Rectifier (b) Amplifier (c) Transformer (d) Op-amp 3. Op-Amp with positive input type configuration +V or V is called (a)Non-inverting type input (b)Inverting type input (c)Non-inverting type output (d) Inverting type output 4. Op-Amp has (a) Single (b) Similar (c)Multiple (d)Differential 5. Write the formula for closed-loop voltage gain of inverting amplifier with feedback using open-loop voltage gain and gain of the feedback circuit. (c)AF=-B/(1+AB) (d)None of the mentioned (a)AF= A/(1+AB) (b)AF= -A/(1+AB) 6. Voltage shunt feedback amplifiers are also called as (a)Non-inverting amplifier with feedback (b)Non-inverting amplifier without feedback (d) Inverting amplifier without feedback (c)Inverting amplifier with feedback 7. The type of active filter is: (a) active low…

An inverting op-amp circuit has a voltage gain of 10 and a source resistance of 5k. What is the value of the feedback resistors? Note: Enter numeric answer only ohms

please do question 2 and 3