A single current-carrying circular loop of radius R is placed next to a long, straight wire. The current in the wire points to the right and is of magnitude I. In which direction must current flow in the loop to produce zero magnetic field at its center? O The current in the loop should be zero A. It is indifferent if clockwise or counterclockwise. clockwise counterclockwise
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- A solenoid of length 2.30 m and radius 2.00 cm carries a current of 0.130 A. Determine the magnitude of the magnetic field inside if the solenoid consists of 2400 turns of wire. TThere is current I flowing in the clockwise direction in a square loop of wire that is in the plane of the paper. If the magnetic field B is toward the right, and if each side of the loop has length L,then the net magnetic torque acting on the loop is:Consider two parallel wires carrying current in the same direction. Which one of the following statements is true concerning this situation? O The two wires will repel each other, even no external magnetic field is applied to the wires. O The two wires will repel each other, only if an external magnetic field is applied to the wires. O The two wires will attract each other, even if no external magnetic field is applied to the wires. O The two wires will attract each other, only if an external magnetic field is applied to the wires. The wires will be neither attracted nor repelled from each other regardless of whether or not an external magnetic field is applied to the wires.
- A square current loop of 26.2 A is inscribed within a circular current loop A in the plane of the page. What must the current in the circular loop be such that the net magnetic field at the center of the system is zero if the radius of the circular loop is 0.09m? Assume that the magnetic felds produced by the loops are in opposing directions at the center or the system.A positively charged particle travels in the positive x direction through a region of magnetic field in the negative y direction. In what direction is the resulting force? O negative x direction O negative z direction O positive y directionA conductive wire is arranged on the surface of the cube whose sides are 40 cm as shown. The wire is in the same magnetic field B = 0.02 T j. If the conductor is energized by an electric current I = 4 A in the direction shown in the picture, determine the vector of the magnetic force experienced by each piece of wire.
- -9 the positive x-direction. the negative x-direction. O the positive y-direction. O the negative y-direction. O out of page O into the page O y V I X A long straight wire lies along the x-axis and carries current in the negative x-direction. A negative point charge moves along the y-axis in the negative y-direction. The magnetic force that the wire exerts on the point charge is inTwo long, parallel wires carry currents of I, = 10.0 A and I, = 5.0 A in opposite directions (see figure below). Which of the following statements must be true? More than one statement may be correct. I II III O In region I, the magnetic field is into the page and is never zero. O In region II, the field is into the page and can be zero. O In region III, it is possible for the field to be zero. O In region I, the magnetic field is out of the page and is never zero. O There are no points where the field is zero.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