The following diagram shows a wire of length L carrying a current i. A magnetic field B is applied in the direction shown. Where does the magnetic force vector point? Select one: O a. It depends on the strength of B. O b. In the positive y direction. O c In the negative x direction. O d. In the negative y direction.

Three long, straight wires are seen end-on in the figure below. The distance between the wires is r = 0.246 m. Wires A and B carry current Iд = IB = 1.60 A, and wire C carries current Ic = 3.46 A. Assume (for example) the only forces exerted on wire A are due to wires B and C. Find the force per unit length exerted on the following. (Express your answers in vector form.) (a) wire A A = = B (b) wire B = A N/m N/m Ic y x

A current-carrying wire is in a B-field and experiences a magnetic force (FB>0). The magnetic force vector is shown below. Choose all the arrows that could represent the current direction. Magnetic force Current direction 45° 45° 45* 45° 45° 40 45° 45°

part 1- What is the magnetic force on the top side? If the magnetic force is in the −y-direction, enter a negative value. Answer in units of N. Part 2- What is the magnetic force on the bottom side? If the magnetic force is in the −y-direction, enter a negative value. Answer in units of N. Part 3-What is the magnetic force on the left side? If the magnetic force is in the −x-direction, enter a negative value. Answer in units of N. Part 4- What is the magnetic force on the right side? If the magnetic force is in the −x-direction, enter a negative value. Answer in units of N. Part 5- What is the net magnetic force on the loop? Answer in units of N.

A particle with unknown properties moves into a region of space containing both a uniform electric field and a uniform magnetic field, as shown below. The particle begins to deviate upwards from its original trajectory. How do the magnitudes of the two forces compare? OB The electric force is stronger than the magnetic force The magnetic force is stronger than the electric force А. В. С. The electric force and the magnetic forceare equal in magnitude (but nonzero) The electric force and the magnetic force are both exactly zero Nothing can be determined without additional information D. Е.

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Three long, straight wires are seen end-on in the figure below. The distance between the wires is r= 0.254 m. Wires A and B carry current IA = IB = 1.51 A, and wire C carries current Ic = 3.30 A. Assume (for example) the only forces exerted on wire A are due to wires B and C. Find the force per unit length exerted on the following. (Express your answers vector form.) B (a) wire A (b) wire B IB TA N/m N/m Ic X

Three long, straight wires are seen end-on in the figure below. The distance between the wires is r = 0.266 m. Wires A and B carry current IA = IB = 1.48 A, and wire C carries current Ic = 3.22 A. Assume (for example) the only forces exerted on wire A are due to wires B and C. Find the force per unit length exerted on the following. (Express your answers in vector form.) A (a) wire A FA = B = (b) wire B IB Ic C |(3.88-10-7) – (6.71 · 10−7)ĵ N/m y X N/m