A' A C' Figure 29.5 (Example 29.2) A por- tion of a wire forms an arc of a circle. The length of the curved segment AC is s.

As shown in the figure, a long, hollow, conducting cylinder of inner radius a and outer radius b carries a current that is flowing out of the page. Suppose that a = 4.93 cm, b = 7.93 cm, and the current i = 103 mA, uniformly distributed over the cylinder wall (between a and b). Find the magnitude of the magnetic field at each of the following distances r from the center of the cylinder:  a)r = 6.39 cm.  b) r = 9.25 cm.

There are three parallel wires perpendicular to the paper, each carry ing current I that are located at the vertices of a right triangle. The current is coming out of the paper for wires 1 and 2 and into the paper for wire 3. Point A is at the midpoint of the hypotenuse. d 45⁰ 2 A 45° d (X) 3 Calculate the net magnetic field vector (both magnitude and direction) at A.

An infinitely long wire carries a current of I = 160 A. Consider a circle with a radius r and centered on the wire. Determine the magnitude of the magnetic field B at points along the circle in terms of I and r.

Uniform magnetic field points perpendicular out of the page. A wire carrying current I is placed in the magnetic field. What is the direction of magnetic force on electron #1 moving in the direction of the arrow next to it?

A proton acclerated from rest through a voltage of 750 V enters a region of constant magnetic field. if the proton follows a circular path with a radius of 27cm, what ia the magnitude of the magnetic field? Sketch wiith all vectors (v, B, F, a)

Three very long, straight, parallel wires each carry currents of 15.6 A, directed into of the page. The wires pass through the vertices of a right isosceles triangle of side 13.1 cm. What is the magnitude of the magnetic field at point P at the midpoint of the hypotenuse of the triangle?