A magnetic field whose magnitude is B = 1.66 T impinges on a circular magnetic dipole of 100 turns, carrying a current of 3.33 A, whose radius isr= 2.66 cm. Because the magnetic dipole moment is rotated with respect to the field, the magnetic flux through the dipole is b = 2.64 x 10-3 Wb. (Wb is the abbreviation for...
A stationary magnetic field can create an electric current in a stationary conductor.
A wire loop has an area of 0.36 m2 and a resistance of 1.5 ?. The loop lies in a horizontal plane where there is a downward-directed magnetic field of magnitude 0.015 T. The wire is pulled to one side so that it is completely out of the field after 0.20 s. For the 0.20-s period during which the loop...
An electron is chasing a proton up the page. What happens to their paths if a magnetic field is suddenly turned on perpendicular to the surface of the page.16. The drawing shows four situations in which two very long wires are carrying the same current, although the directions of the currents may be different. The point \(P\) in the drawings...
First picture is the question, second is the answer. Not
sure how to get between them.
3. (25 points) Two parallel, resistance free rails lie in the horizontal plane and are a distance W apart. The are connected by a resistance free wire at one end. A rod, mass and length placed at rest on the the point defined be...
16 Electric field ranking Three isolated pairs of charges are separated by the same distance in the three situations illustrated below. Rank the magnitudes of the electric fields at the midpoints (labeled P) from smallest to largest. Explain your answers. +2C +1C +2C +2C Case A Case B +2C
A rectangular loop consists of 120 closely wrapped turns and has dimensions 0.40 m by 0.30 m. The loop is hinged along the y-axis, and the plane of the coil makes an angle of 30.0° with the x-axis (see figure below). What is the magnitude of the torque exerted on the loop by a uniform magnetic field of 0.98 T...
39. As an electric current flows through a wire, a. a magnetic field is generated that is inversely related to the current. b. magnetic field lines form around the wire that reverse direction when the current is reversed. c. the lines of magnetic force created closest to the wire are the weakest. d. magnetic lines of force are formed around...
A compass is placed east of a wire. Draw two vector diagrams with a magnetic field felt by the compass. one with current and one without current.
Calculate the magnitude of the electric field at one corner of the square 1.82m On a side it the other three corners are occupied by 3.25×10-6 C charges. Express your answer to three sig figs and include appropriate units.