Find the magnetic field at a point a from the long flat cable carrying the current I.

a loop model (loop L) for a paramagnetic material. (a) Sketch the field lines through and about the material due to the magnet.What is the direction of (b) the loop’s net magnetic dipole moment , (c) the conventional current i in the loop (clockwise or counterclockwise in the figure), and (d) the magnetic force acting on the loop?

A wire carrying a current I is bent into the shape of an equilateral triangle of side L. (a) Find the magnitude of the magnetic field at the center of the triangle. (Use any variable or symbol stated above along with the following as necessary: μ and π.) B (b) At a point halfway between the center and any vertex, is the field stronger or weaker than at the center? O weaker O the same strength O stronger

Two parallel, infinitely straight lines currents, I1 and I2, (but opposite in direction) are separated by a distance d. Find the magnitude of the force per length between them (“force per length” so that it wouldn’t be an infinite force between them). Indicate whether the force would be attractive or repulsive.

Answer The figure below shows a long conducting coaxial cable and gives tis radii (R, 320m, Ry9.3cm, Ry16cm) The outer cable has a uniform current denalty of J-2.2 A/m², and the inner cable carries a uniform current i 4.1A flowing in opposite direction. Assume that the currents in each wire is uniformly distributed over its cross section. Determine the magnitude of the magnetic field in terms of Ue at a distance r 13.6cm from the center o the cable. Express your answer using two decimal placen. R₂ R3

The current in a solenoid with 26 turns per centimeter is 0.45 A. The solenoid has a radius of 1.6 cm. A long, straight wire runs along the axis of the solenoid, carrying a current of 16 A Part A Find the magnitude of the net magnetic field a radial distance of 0.80 cm from the straight wire. Express your answer using two significant figures. |VL ΑΣΦ 3 B= 1.87 O Submit Previous Answers Request Answer ? mT

A rectangular loop in the xy-plane carrying a current I lies in a uniform Magnetic field B = axBx + ayBy + azBz. Determine the Force and the torque on the loop