If R1 = 6 Ω, R2 = 8 Ω, R3 = 2 Ω, ε1 = 4 V, and ε2 = 14 V, what is the current in R2?

Question

Pierre

Physics

11 March, 11:39

If R1 = 6 Ω, R2 = 8 Ω, R3 = 2 Ω, ε1 = 4 V, and ε2 = 14 V, what is the current in R2?

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Answers (1)

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Leandro Chase · Answer 1

We need to formulate an equation using Kirchhoff's Law and the 2 equations formed are listed below:

-4i1+10i2=14 and 7i1-8i2=4

Since we have two equations and two unknowns, we can now solve for current 1 (i1) and current 2 (i2). Then we have i1=2 amperes and i2=3 amperes.

Therefore, the current in R2 is 1 ampere.