Write down an expression for the electromotive force e generated between the ends of straight conductor of lengthI moving with velocity v at anangle 60 degrees to the lines of the magnetic field B. Please use "*" for products (e.g. B*A), "/" for ratios (e.g. B/A) and the usual"+" and "-" signsas appropriate. For the trigonometric functions use the usual sin and cos (e.g. for sin 30°, use sin(30)). Please use the "Display response" buttonto check you entered the answer you expect.E=

When any conductor is moving in magnetic field. Then, in that case an emf is generated between the…

Answered: Write down an expression for the…

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A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The current density J, however, is not uniform over the cross section of the conductor but is a function of the radius according to J = 4br2, where b is a constant. Find an expression for the magnetic field magnitude B at the following distances, measured from the axis in part a and b. (Use the following variables as necessary: ?0, r1, r2, b, R.) Note: See image for the original question and figure
Consider a conducting ring of radius a and resistance R. Case I We first place the ring in a constant magnetic field B = shown in Figure 9. Bo pointing into the page as a) Calculate the magnetic flux through the ring. Express the answer in terms of the defined parameters in the problem.
Problem 3: An infinitely long single wire with current I = 6.5 A and a rectangular wire loop with current I, = 0.55 A are in the same plane as shown. The dimensions of the loop are a = A B 0.052 m and b = 0.055 m. The infinite wire is parallel to side AD of the loop and at a distance d= 0.21 m from it b I, I, d. D Part (a) Express the magnitude of the magnetic force Fad from Ij on wire AD in terms of I, I2, d and the loop dimensions. Fad = 7 9 OME a 4 6 d * 1 3 h I1 I2 + END vol BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Part (b) Calculate the numerical value of Fd in N. Part (c) Express the magnitude of the magnetic force Fe, from I, on wire BC in terms of I1, I2, a, b, and d. Part (d) Calculate the numerical value of F, in N. Part (e) Is the force of Fad repulsive or attractive? Part (f) Is the force of F, repulsive or attractive? Part (g) The forces of Fad and Fbc both act on the infinite wire I1. Do they sum to produce a net attractive or repulsive force? Part (h)…
A closed current path is made from two different circular arcs as shown in the figure below. The larger arc has radius 3.0 cm and covers one quarter of the circle, and the smaller arc has radius 1.0 cm and covers the remaining three quarters of the circle. If the current is 1.5 A going counterclockwise, what is the magnitude of the B-field at the center of the circular arcs? Express your answer to the nearest µT.
A rectangular wire loop of height h, width w, and net electrical resistance R lies in the x-y plane. As shown in the figure below, the entire region x < 0 of space is occupied by a constant, uniform magnetic field which points in the –z direction (into the page). In order to determine the magnitude of this field, a student pulls the wire loop out of the magnetic field region at a constant velocity v in the +x-direction, and measures the current I induced in the loop during this process. I = 17 μAR = 35 ohmsh = 3 cm w = 8 cmv = 2 cm/sec a) What is the direction of the current induced in the wire loop? b)What is the magnitude B of the magnetic field?
Problem 2 Show that in a current-free volume of space, a static magnetic field can never have a local maximum by considering V(B· B) · da, where S is the surface of a small volume V containing a point P in space.
Problem-1: An infinitely long circular cylinder of radius R, carries a uniform magnetization M = Mk. (a) Determine the bound currents, J, =? and K, =? (b) Sketch the direction of the bound currents on the figure. (c) Deduce "M" in terms of the surface charge density, o and angular velocity of surface charges, w. (d) Determine the magnetic field inside and outside the cylinder. (Bin =? and Bout =?) M Hint: B = Honlk inside a solenoid, coaxial with the z – axis, with density of turns per unit of length "n", and carrying a current I.
Two conducting semicircles, MN and MO, centered at points O and O1 respectively, areplaced on a horizontal plane. The radii of the two semicircles are 4 cm and 2 cm,respectively. The two semicircles are in electrical contact at point M. A uniform magneticfield normal to the horizontal plane exists in the region enclosed by the two semicirclesand the line ON, as shown in Figure 2. The magnitude of the magnetic field isB = 0.015 T. An ultrathin conducting rod has one end electrically connected to thesmaller semicircle MO at point O, and is fixed at point O. The rod has a length equals tothe radius of the larger semicircle, and it rotates clockwise around O at a constant angularvelocity  = 50  rad/s. During the rotation, the other end of the rod, labelled as P, is ingood electrical contact with the larger semicircle MN. At t = 0, the end of the rod P is atpoint M. For02t  , as the rod rotates, it is also in good electrical contact with thesmaller semicircle MO at some point Q, as…
Please answer parts (a), (b), and (c).
A particle of mass “M” and charge “+Q” Travels at a velocity “V” in a plane perpendicular to a Magnetic Field of magnitude “B” as shown in the Picture. The particle will experience motion on a circular path. (not the question just context, also the pic is for probelm 1.) Assume similar conditions as problem 1 but now the proton, moves along the magnetic field undeflected. This new behavior can only be explained if there exist an external electric field in addition to the magnetic field. What is the magnitude and direction of such field? (you can disregard gravity) (prob 2 is the question:) sorry if its confusing)