Question

Part A For the circuit shown in (Figure 1), if $\Delta R \ll R$, the output voltage of the op amp is approximately $v_o \approx \frac{R_f (R + R_f)}{R^2 + 2 R R_f} (-\Delta R) v_{in}$ Find $v_o$ using the approximate expression given if $R_f = 500 \text{ k}\Omega$, $R = 15 \text{ k}\Omega$, $\Delta R = 100 \Omega$, and $v_{in} = 15 \text{ V}$. Express your answer to four significant figures and include the appropriate units. ? View Available Hint(s) Figure $R_f$ $R + \Delta R$ $R$ $R$ $R$ $v_{in}$ $R$ $R$ $R_f$ $v_o$ 1 of 1 Part B Find the actual value of $v_o$ for the conditions from part A. Express your answer to four significant figures and include the appropriate units. ? View Available Hint(s)

          Part A
For the circuit shown in (Figure 1), if $\Delta R \ll R$, the output voltage of the op
amp is approximately
$v_o \approx \frac{R_f (R + R_f)}{R^2 + 2 R R_f} (-\Delta R) v_{in}$
Find $v_o$ using the approximate expression given if $R_f = 500 \text{ k}\Omega$, $R = 15 \text{ k}\Omega$, $\Delta R = 100 \Omega$, and $v_{in} = 15 \text{ V}$.
Express your answer to four significant figures and include the appropriate units.
? View Available Hint(s)
Figure
$R_f$
$R + \Delta R$
$R$
$R$
$R$
$v_{in}$
$R$
$R$
$R_f$
$v_o$
1 of 1
Part B
Find the actual value of $v_o$ for the conditions from part A.
Express your answer to four significant figures and include the appropriate units.
? View Available Hint(s)

Part A
For the circuit shown in (Figure 1), if Δ R ≪ R, the output voltage of the op
amp is approximately
vo ≈(Rf (R + Rf))/(R^2 + 2 R Rf) (-Δ R) vin
Find vo using the approximate expression given if Rf = 500 kΩ, R = 15 kΩ, Δ R = 100 Ω, and vin = 15 V.
Express your answer to four significant figures and include the appropriate units.
? View Available Hint(s)
Figure
Rf
R + Δ R
R
R
R
vin
R
R
Rf
vo
1 of 1
Part B
Find the actual value of vo for the conditions from part A.
Express your answer to four significant figures and include the appropriate units.
? View Available Hint(s)

Added by Christopher L.

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