Can you please answer a,b & c? Problem 5: A circular arc of wire with radius R and extent from 01 to 02 carries acurrent I as shown in the diagram to the right. (You may assume that this arc of wireis part of a larger circuit that may be ignored for the purposes of this exercise.) Youwill calculate the magnetic field at the point P by evaluating a Biot-Savart integral ofthe formIdš x î47p2R,Part (a) Enter an expression for the current element I ds.Expression :Ids =Select from the variables below to write your expression. Note that all variables may not be required.cos(0), sin(0), ɛo, µo, T, 01, 02, î, ĵ, k, d0, dr, I, p, RPart (b) With the origin of your coordinate system placed at the observation point P, enter an expression for the unitvector r.Expression :r =Select from the variables below to write your expression. Note that all variables may not be required.cos(0), sin(0), ɛo, µo, T, 01, 02, î, j, k, d0, dr, I, p, RPart (c) With the origin of your coordinate system placed at the observation point P, which integral provides a correctevaluation of the magnetic field at P? (Make no simplifications at this step.)MultipleChoice :IRde(- sin(0) i +cos(0) j ) × (- cos(0) i -sin(8) ĵHo1)RIRde(- sin(8) î +cos(8) § ) × (- cos(8) i -sin(8) })RIRde (sin(@) i +cos(@) § ) × (- cos(0) î -sin(0) j )4тB = SHo2)3) B = SoR?c2m IRde(- sin(0) i +cos(8) )x(- cos(0) i -sin(8) } )R4)ВHoIRde (- sin(e) î +cos(8) 3 ) × (- cos(0) î – sin(e) § )Ho5)4TIRde(- sin(0) i +cos(0) ) x(- cos(8) i -sin(0)Ho6)B =4тIRde(- sin(0) i +cos(0) )× (cos(0) i -sin(8) ĝ7)B =R2IRde(- sin(@) î +cos(0) § ) × (cos(0) i +sin(8) })8)R2Part (d) With the origin of your coordinate system placed at the observation point P, which partially simplified integralprovides a correct evaluation of the magnetic field at P?MultipleChoice :-Sa cos²(8)de kS do k1)B =2)B =4nRg So, (sin (0) – cos² (0)) do :-S sin? (0)de k3) ВB =4RHoIB =ER Je, 2 sin(0) cos(0)de4)5)6)Sr de k4TR Je,So cos?(0)do kB =4TRB7)8)4R Jo, sin? (0)de î:Part (e) Evaluate the integral and enter a simplified expression for the magnitude of the magnetic field, B, evaluated at P.Expression :B =Select from the variables below to write your expression. Note that all variables may not be required.cos (θ), sin (θ), ερ, μ0, π, θ1, θ2 , 1j, k de, dr, L p, RPart (f) Enter an expression for the direction of the magnetic field, B/B, evaluated at P.Expression :B/B =Select from the variables below to write your expression. Note that all variables may not be required.cos(0), sin(0), ɛo, µo, T, 0, 01, 02, î, ĵ, k, d0, dr, I, R|| || || || || || |||

Given arc with radius R extended from θ1 to θ2 carrying current I.

Problem 5: A circular arc of wire with radius R and extent from 01 to 02 carries a current I as shown in the diagram to the right. (You may assume that this arc of wire is part of a larger circuit that may be ignored for the purposes of this exercise.) You will calculate the magnetic field at the point P by evaluating a Biot-Savart integral of the form Ids x r 47 p2 R, Part (a) Enter an expression for the current element I ds. Expression : I ds = Select from the variables below to write your expression. Note that all variables may not be required. cos(0), sin(0), ɛo, µo, T, 01, 02, î, j, k, de, dr, I, p, R Part (b) With the origin of your coordinate system placed at the observation point P, enter an expression for the unit vector r. Expression : r = Select from the variables below to write your expression. Note that all variables may not be required. cos(0), sin(0), ɛo, µo, T, 01, 02, î, j, k, d0, dr, I, p, R Part (c) With the origin of your coordinate system placed at the observation point P, which integral provides a correct evaluation of the magnetic field at P? (Make no simplifications at this step.) MultipleChoice : IRde(- sin(@) i +cos (0) § ) × (- cos(0) i -sin(0) ĵ Ho 1) R I Rde(- sin(8) i +cos(0) } ) ×(- cos(0) i -sin(8) } ) R IRde (sin(8) i +cos(@) 3 ) ×(- cos(0) i -sin(0) j ) 4т B = S 2) 3) B = So R c2m IRde(- sin(0) i +cos(8) )x(- cos(0) i -sin(0) } ) R 4) В IRde (- sin(e) î +cos(0) 3 ) × (- cos(0) î – sin(e) 3 ) IRde(- sin(8) î +cos(0) ) x (- cos(0) i -sin(0) } 5) 4T Ho 6) B = 4т IRde(- sin(0) i +cos(0) )× (cos(0) i -sin(8) ĝ 7) Ho B = AT R IR10(- sin(0) i +cos(8) )x (cos(8) i +sin(8) 一与

Problem 5: A circular arc of wire with radius R and extent from 01 to 02 carries a current I as shown in the diagram to the right. (You may assume that this arc of wire is part of a larger circuit that may be ignored for the purposes of this exercise.) You will calculate the magnetic field at the point P by evaluating a Biot-Savart integral of the form Ids x r 47 p2 R, Part (a) Enter an expression for the current element I ds. Expression : I ds = Select from the variables below to write your expression. Note that all variables may not be required. cos(0), sin(0), ɛo, µo, T, 01, 02, î, j, k, de, dr, I, p, R Part (b) With the origin of your coordinate system placed at the observation point P, enter an expression for the unit vector r. Expression : r = Select from the variables below to write your expression. Note that all variables may not be required. cos(0), sin(0), ɛo, µo, T, 01, 02, î, j, k, d0, dr, I, p, R Part (c) With the origin of your coordinate system placed at the observation point P, which integral provides a correct evaluation of the magnetic field at P? (Make no simplifications at this step.) MultipleChoice : IRde(- sin(@) i +cos (0) § ) × (- cos(0) i -sin(0) ĵ Ho 1) R I Rde(- sin(8) i +cos(0) } ) ×(- cos(0) i -sin(8) } ) R IRde (sin(8) i +cos(@) 3 ) ×(- cos(0) i -sin(0) j ) 4т B = S 2) 3) B = So R c2m IRde(- sin(0) i +cos(8) )x(- cos(0) i -sin(0) } ) R 4) В IRde (- sin(e) î +cos(0) 3 ) × (- cos(0) î – sin(e) 3 ) IRde(- sin(8) î +cos(0) ) x (- cos(0) i -sin(0) } 5) 4T Ho 6) B = 4т IRde(- sin(0) i +cos(0) )× (cos(0) i -sin(8) ĝ 7) Ho B = AT R IR10(- sin(0) i +cos(8) )x (cos(8) i +sin(8) 一与