2. Consider the variable gain amplifier circuit below. Varying the input Vg will let the non-inverting amplifier have a variable gain. Let VrH = 4V, k =1 mA/v2, 1V < vị < 2V and 0V < Vc < 12V. U1 Vi o vo 1k 100 Vg oW M1 a. Find the range of values for Vg such that M1 will always operate in the linear region. b. Using the range of values in a, what is the amplifier gain Ay = range? Vị Plot v, when VG = 10V and vị is a 1-2 V, 1kHz triangular wave. C.

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KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.