Chapter 18, Problem 26P

Figure P18.26 shows a voltage divider, a circuit used to obtain a desired voltage ΔV_out from a source voltage ε. Determine the required value of R₂ if ε = 5.00 V, ΔV_out = 1.50 V and R₁ = 1.00 × 10³ Ω (Hint: Use Kirchhoff's loop rule, substituting ΔV_out = IR₂, to find the current. Then solve Ohm’s law for R₂.

Figure P18.26