Problem

The circuit in Figure. 1 is a noninverting summing amplifier. Assume the op amp is ideal....

The circuit in Figure. 1 is a noninverting summing amplifier. Assume the op amp is ideal. Design the circuit so that

υo = υa+ 2υb + 3υc.

a) Specify the numerical values of Ra and Rc.
b) Calculate ia, ib, and ic (in microamperes) when νa = 0.7 V, υb = 0.4 V, and υc = 1.1 V.

Figure. 1

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