- C Ir Questions 13 15 A Cylindrical Long Straight Wire Of Radius R Carries A Uniform Current Density Of Magnitude J I T 1 (87.7 KiB) Viewed 29 times
(c) Ir Questions 13-15 A cylindrical long straight wire of radius R carries a uniform current density of magnitude J=I/TR> into the page as shown.(The coordinate r measures the distance from the axis of the Flin) cylinder. CW: clockwise, CCW: counter-clockwise) 13. For r<R how much current is encircled by a loop of radius r centered at origin? (a) Ir-/R2 (b) none (d) TIR2/r2 (e) Ir-/R2 14. Find the magnetic field (magnitude and direction) for r<R (inside the wire). R (a) Mol/2R, CW (b) MoIr/2R², CCW (c) MoIr/2 R2, CW (d) MOIR/2r2, CCW (e) μοΙ/2πη, CW 15. Find the magnetic field (magnitude and direction) for r > R outside the wire). (a) Mo Ir/2TR², CW (b) MOI/2r, CCW (c) gl/2mr, CW (d) MOIR/2r?, CW (e) MOI/2R, CCW