1-If the value of an inverting amplifier input resistor were lowered, calculated gain will be: a. Remained the same. b. Increased. c. Decreased. d. None of the above.

Describe two different methods for determining the stability of an amplifier.

Why are the two circuits called inverting and non-inverting amplifier, respectively?

Cmrr

Provide a detailed explanation on differential amplifier circuits explain how these circuits work. explain input biasing ,offset current, output offset voltage, common-mode gains,and common-mode rejection-ratio (CMRR). also list possible sources of error that can occur when conducting a differential amplifier circuit experiment.

(i)Draw the pin diagram of Operational  Amplifier. (ii)List the types of Operational amplifiers .Also write the definitions of any two of them.

1. By using re model, draw the a.c. equalent circuit for the transistor amplifier shown in figure 1 Figure 1 i. ii. iii. iv. "Î Figure 2 R₁ C₁ V₁ R₂ 2. By using equalent circuit mention in 'part 1'. Write the mathematical expressions for followings, www m input impedence of the amplifier output impedance of the amplifier voltage gain of the amplifier current gain of the amplifier 3. By using h-parameter model, draw the a.c. equalent circuit for the transistor amplifier shown in figure 2. Assume that hre= high (∞), hoe = 0 and the rectance of capacitors C₁, C₂ and C3 is zero. Vcc Rc R₁ C₁ VBE RE R₂ +₁. Vcc Rc RE: C₂ C₂ Vo Vo R₁ R₂ Rc RE hie hfe = 38 ΚΩ = 10 ΚΩ = 4.7 ΚΩ = 2.2 kΩ = 1kΩ = 50

Analog Electronic (Field-Effect Transistors) a) Name the transistor used and plot the transfer characteristics of the transistor. b) Determine the operating point of the amplifier by finding IDQ and VGSQ using the graphical method.