As shown in the figure, a uniform conducting rod of length 0.38 m and mass 0.075 kg is in rotational equilibrium about the hinge at point O. A uniform magnetic field of 0.32 T is directed out of the plane of the page, perpendicular to the rod. Due to a battery and wires not shown, there is a current of 4.0 A in the rod directed toward point O. Determine the angle 8. O ر O OO OOO B

Question in the attachment

Problem 8: The long straight wire carries a current Ii (directed to the right) and the rectangular loop carries a current 2 (counterclockwise). H, I Recall, a long current carrying wire produces a magnetic field B1ong straight wire 2n r a 1 4 b 3 L (a) On the figure above, indicate the direction of the force on each segment of the rectangular loop due to the long current carrying wire. The forces act inward on each segment of wire (anti-parallel currents repel one another). (b.) Does the current in the long wire result in a net force on the rectangular loop? If so, describe the subsequent motion of the rectangular loop. Because the force on the top wire is stronger than the force on the bottom wire the loop accelerates away from the long wire.

Please explain why. Thank you.

The figure below shows the end view of four long parallel wires (labeled 1 through 4) each with a current of 8.40 A arranged in a square with sides of length 0.380 m. The current direction is out of the page for wires 1 and 2 and into the page for wires 3 and 4. Write a vector expression for the magnetic field at the point P which is at the center of the square.

Four thin wires that are parallel, straight, and very long are shown in the figure. All four wires carry an identical current I in the directions indicated. All four wires are a distance d from the origin of the coordinate system. y 4 d All wires carry a current I in the d d indicated direction. 1 3 d All wires are a distance d from the origin. 2 a) Identify the direction of the magnetic field at the origin for each wire. Possible directions have been given below. Each answer choice may be used more than once. А. Т В. I С. — E. out of page F. into page D. + Wire 1: Wire 2: Wire 3: Wire 4: b) What is the x-component of the net magnetic field at the origin? Express your answer in terms of I, d, and fundamental constants.

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