Ch 13 homework - PHY2049, s X MY SCF Home: State College o X (15) A rectangular loop consist X + C webassign.net/web/Student/Assignment-Responses/last?dep=32016566#Q3 : The accompanying figure shows a rectangular coil consisting of 40 closely spaced turns that has a resistance of 9.0 0. The magnetic field at all points inside the coil varies according to B = Boe-at, where Bo = 0.85 T and a = 200 s-1. X X x 5.0 cm What is the current induced in the coil (in A) at the following times? (Enter the magnitudes.) (a) 0.001 s b) 0.002 s A (c) 2.0 s Additional Materials Reading Submit Answer 4. [-/1 Points] DETAILS OSUNIPHYS1 30.1.WA.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A long straight wire carries a current of 3.00 A as shown in the figure. The distance , = 10.0 cm, 2 = 20.0 cm, and { = 16.0 cm. Determine the magnitude of the magnetic flux through the area shown. 7wb Additional Materials Reading Submit Answer 5. [-/1 Points] DETAILS OSUNIPHYS1 30.1.WA.005. TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An emf is induced by rotating a 1507 turn, 20.0 cm diameter coil in the Earth's 6.53 x 10-5 T magnetic field. What average emf is induced, given the plane of the coil is originally perpendicular to the Earth's field and is rotated to be parallel to the field in 10.0 ms? V Additional Materials Reading Tutorial Submit Answer 6. [-/2 Points] DETAILS OSUNIPHYS1 30.1.WA.008. TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A long piece of wire is bent into a rectangular loop and placed on a table top in the horizontal plane. A very long straight piece of wire, placed as shown in the diagram below has a current I = a - bt2 flowing in the direction indicated. The wire is at a distance of d = 2.50 cm from the left side of the rectangular loop. What are the magnitude and direction of the induced emf in the loop at t = 1.14 s? Here a = 15.2 A, b = 1.50 A/s", = 0.500 m, and w = 0.250 m. magnitudeCh 13 homework - PHY2049, s X MY SCF Home: State College o X (15) A rectangular loop consist X + C webassign.net/web/Student/Assignment-Responses/last?dep=32016566#Q3 : Submit Answer 14. [-/1 Points] DETAILS OSUNIPHYS1 30.4.P.047. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Calculate the induced electric field (in V/m) in a 52-turn coil with a d netic field of magnitude 0.70 T so that the face of the coil and the magnetic field are perpendicular. This magnetic field is reduced to zero in 0.10 seconds. Assume that the magnetic field is cylindrically symmetric with respect to the central axis of the coil. (Enter the magnitude. V/m Additional Materials Reading Submit Answer 15. [-/1 Points] DETAILS OSUNIPHYS1 30.4.P.053. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The current in a long solenoid of radius 2 cm and 18 turns/cm is varied with time at a rate of 8 A/s. A circular loop of wire of radius 4 cm and resistance 3 0 surrounds the solenoid. Find the electrical current induced in the loop (in HA). HA Additional Materials Reading Submit Answer 16. [-/4 Points] DETAILS OSUNIPHYS1 30.4.WA.030. TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Assume in the figure below the positive z direction points out of the page and the negative z direction points into the page. In the circular region of radius R = 25.0 cm in the figure below, there is a magnetic field that is dire to and out of the page. The magnetic field is given by the equation B, = a - bt in the circular region. Outside of this circular region, the magnetic field is always zero. Here a = 15.0 T and b = 1.13 T/52 . (a) At t = 0.350 s, find the magnitude and direction of the electric field at the location A, where dj = 12.0 cm. V/m direction -Select - V (b) At t = 0.350 s, find the magnitude and direction of the electric field at the location B, where dy = 27.0 cm. magnitude V/m direction -Select -. V Additional Materials Reading Tutorial Submit Answer 17. [-/2 Points] DETAILS OSUNIPHYS1 30.6.P.055. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Design a current loop that, when rotated in a uniform magnetic field of strength 0.73 T, will produce an emf & = 8, sin(wt), where &. = 110 V and w = 1207 rad/s. First, choose the number of turns the loop should have. (Enter a positive integer less than 100.) turns Then calculate the needed area of the loop (in m2). (Use the number of turns you entered above.) 7m2 Additional Materials Reading