Question

Find potential difference (voltage) across resistance R1, if R1=1Ω, R2=3Ω, R3=6Ω, and e₁=12V, e₂=3V, e₃=6V in the circuit shown. in V, 1 significant figure

O Quic Proctice Test 2 (Ch9-12) Cux M Ranat Sahiranov (205U PHYS217 C Find Potential Difference (voltage x + х c unomaha.instructure.com/courses/34408/quizzes/97579/take/questions/1910944 * *** R1 R2 R3 3 En &2 Type here to search O ENG 12:25 AM 7/31/2020 n

Answer 1

R R3 Let us find Vx by nodal analysis, By applying KCL at node V - E, Vx - { Vx+ E + R Rq ६, J & I + R3 = - 5) x - 12 Vx-3 {, = RV z = 31 Ę = 6V =12 R = 32 + + V xt 6 3 R - + =) - Vc - 12 + Vse 6 Vx 3 +] R Potential differance across R; VR = x - E, -) 3 Vx 21 3 V rose 5) V = 7-12 = - 5 Volt -) V = 7V

You can also write this potential is +5 volt, negative sign just a way to how we are looking the current.