Consider a long wire and a rectangular current loop. pham (vp7427) – Homework 9 - Magnets and magnetic fields – reilly – (54195) 5 A B C D I1 ℓ b a I2 Determine the magnitude and direction of the net magnetic force exerted on the rectangular current loop due to the current I1 in the long straight wire above the loop. 1. F~ = µ0 I1 I2 ℓ 2 π a b, down 2. F~ = µ0 I1 I2 2 π a b a + b , down 3. F~ = µ0 I1 I2a 2 π ℓ (b − a), up 4. F~ = µ0 I1 I2 ℓ 2 π (a − b), right 5. F~ = µ0 I1 I2 ℓ 2 π b a (a + b) , up 6. F~ = µ0 I1 I2 ℓ 2 π (a + b), up 7. F~ = µ0 I1 I2 2 π (a − b),left 8. F~ = µ0 I1 I2 ℓ 2 π a a + b , down