V_source = V_R1 + V_R2 + V_R3 60 = I 10 + I 20 + I 30 60 = I (60) → I = 1A Voltage across R2 = 1A * 20Ω = 20V.
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For the circuit below (imagine three resistors R1=10Ω, R2=20Ω, R3=30Ω in series with a 60V source), find voltage across R2. V_source = V_R1 + V_R2 + V_R3 60
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