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HW4, Q9
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- Let's consider a circular wire placed on a horizontal table between two straight, parallel, infinite wires, as shown in Homework 6 Figure 1. The center of wire 3 (P) is halfway between wires 1 and 2. If I1= 1.73 A, I2 is 3.69 times greater than I1, s = 0.35 m, and d = 1.49 m, find the value of the current running through 3 such that the magnetic field due to these three currents at point P is zero. is the current clockwise or counterclockwise?Please just help with this question: What would be the terminal velocity of the rod if all the conditions of part (b) of the problem where held, except there was also friction with a kinetic coefficient of ?k=0.0215? (Note: I believe the answer for b) is the induced current of 0.049 A if it helps)Consider the two parallel circular wires shown below. They have the same radius R and separated by R as well. They carry currents in the same direction as shown. If the currents are Ɪ 1=16Ɪ and Ɪ 2=1Ɪ, find the ratio of the magnetic fields created by loop 1 (B1) and loop 2 (B2) at the center of the first loop( point C), B1/B2=? Please note that if the fields are in opposite directions, your answer should be negative. Express your answer using one decimal place.
- Fig. 2 shows, in cross section, two long parallel wires separated by distance d = 10 cm. Each carries 100 A, out of the page in wire1. What is the net magnetic field at point P at distance OP = 7.5 cm, due to the two currents? a/ The current in wire 2 is into the page. b/ The current in wire 2 is out of the page. c/ In case the current in wire 2 is out of the page, find locations on Ox where the net magnetic field is zero.1. Consider a long, thick current-carrying wire with radius R. A. Find the magnetic field at z=R from the wire. B. How much current is enclosed (Ienc) at 0 < z <R? Note: the answers are in formula form.A rectangular loop of dimensions l and w, shown below, moves with a constantvelocity v away from a long straight wire that carries a current I0. The loop has a totalresistance of R. Derive an expression that gives the current in the loop at the instant the nearside is a distance r from the wire
- Assume that a = 0.7 m, b = 0.3 m, I1 = 9.1 A, and I2 = 5.1 A. What is the magnitude of the magnetic force acting on the loop? Enter your answer in micro-Newtons.Two long wires, one of which has a semicircular bend of radius R and center P, are positioned as shown below. If both wires carry a current I, how far apart must their parallel sections be so that the total magnetic field at P is zero? Express a in terms of R. Does the current in the straight wire flow up or down? Explain. The infinite, straight wire shown below carries a current I1. The rectangular loop, whose long sides are parallel to the wire, carries a current I2. What are the magnitude and direction of the total magnetic force on the rectangular loop due to the magnetic field of the long wire?For the situation in Figure below, find the net force on (a) the rectangular loop and (b) on the straight wire. (c) Repeat parts (a) and (b) if the direction of the current in the rectangular loop is reversed. For this problem, let I1 = 5 A and I2 = 10 A.
- It is desired to use a magnetic field of 2.00 x10^-4 teslas to produce a total magnetic flux of 6.28 x10^-8 webers through a circular loop of wire. How should the loop be oriented relative to the field if we want to achieve this with the smallest loop possible? (Draw a picture to express your answer.) What will be the radius of the wire loop required?In the diagram attached, how do we find the net magnetic field at point P? Given: I = 20 A a = 0.30 m x = 0.40 m And please describe in detail how to find the angle and the associated geometry.A current I flows around the rectangular loop shown blow. For the closed-loop paths drawn around the wire, which is the correct order for current through the loops? A) A > B > C > D B) B > D > A = C C) A = C > B = D D) B = D > A = C