A current-carrying rectangular wire loop with wvidth a = 0.110 m and length b = 0.215 m is in the xy-plane, supported by a nonconducting, frictionless axle of negligible weight. A current of I = 3.75 A travels counterclockwise in the circuit (see the figure below). Clo and direction of the force exerted on the left, right, top, and bottom segments of wire (in N) by a uniform magnetic field of 0.200 T that points in the positive x-direction. Find the magnitude of the net torque (in N- m) on the loop about the axle. axle axle HINT (a) left segment of the wire magnitude N direction +X-direction (b) right segment of the wire magnitude direction N v-direction (c) top segment magnitude direction The magnitude is zero. V (d) bottom segment magnitude direction The magnitude is zero. V (e) Find the magnitude of the net torque on the loop about the axle. 024 x N-m

A current-carrying rectangular wire loop with width a = 0.115 m and length b = 0.220 m is in the xy-plane, supported by a nonconducting, frictionless axle of negligible weight. A current of I = 3.50 A travels counterclockwise in the circuit (see the figure below). Calculate the magnitude and direction of the force exerted on the left, right, top, and bottom segments of wire (in N) by a uniform magnetic field of 0.400 T that points in the positive x-direction. Find the magnitude of the net torque (in N · m) on the loop about the axis. (a) left segment of the wire magnitude N direction (b) right segment of the wire magnitude N direction (c) top segment magnitude N direction (d) bottom segment magnitude N direction (e) Find the magnitude of the net torque on the loop about the axle. N · m

Two long parallel conducting rails are separated by a distance d. At one end they are joined by a resistance R. A conducting bar of length d is made to slide at constant velocity v along the rails. Both the bar and the rails have negligible resistance. (a) What current flows in the circuit? (b) How much power is required to move the bar? (C) How does the power dissipated in the resistance compare with the power required to move the bar?

It is desired to construct a solenoid that will have a resistance of 5.60 N (at 20°C) and produce a magnetic field of 4.00 X 10¬2T at its center when it carries a current of 3.10 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 × 10-8 0· m.) (a) the number of turns of wire needed to build the solenoid 1029 v turns (b) the length the solenoid should have X cm 1.034*10**7