1. The problem statement, all variables and given/known data Two long wires carrying current I1 and I2 in opposite directions pass through a closed path S as shown in the picture. What are the values of ∫B⋅ds and ∫E⋅ds if: i) I1=I2=1A ii) I1=1A and I2=0A? 2. Relevant equations Ampere's Law: ∫B⋅ds=μ0I Faraday's Law: ∫E⋅ds=-dΦB/dt 3. The attempt at a solution For i, ∫B⋅ds=μ0(I1-I2)=μ0(0)=0 For ii, ∫B⋅ds=μ0(I1)=μ0(1)=μ0 Is these correct? But I have no idea of finding ∫E⋅ds Please help.