6. A loop of a wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r= 0.18 m. The normal to the plane of the loop is parallel to a constant magnetic field of magnitude 0.79 T. What is the magnitude the change in the magnetic flux that passes through the loop when, starting with the position shown in the drawing, the semicircle is rotated ough half a revolution? Wb (into paper)
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- A closely wound long solenoid of overall length 60 cm has a magnetic field (B) = 5×10-4 T at its center due to a current I = 0.5 A. How many turns of wire in the solenoid? a. 119.4 turns b. 11936.6 turns c. 477.6 turns d. 47746.4A thin, circular coil with 47 turns that has a radius of 20.7 cm carries a current of 2.65 A. What is the strength ?B of the magnetic field at a point on the coil's axis that is 48.9 cm from the center of the coil? B=The right half of the square loop of wire shown is in a 0.85 T magnetic field directed into the page. The current in the loop is 1.3 A in a clockwise direction. What is the magnitude of the force on the loop, and in which direction does it act?
- Q43.7 an electrician has a long conductive wire. it carries a current of I=2.00A. the electrician bends the wire to make a loop-arc shape (refer to image provided). the loop-arc shape has a total radius or r=10.0 cm. help the elctrician figure out the magnitude and direction of the magnetic feild at point P which is located at the center of the loop-arc.If a rectangular loop of wire is placed between the two poles poles of a magnet, with the dimensions w = 0.30 m and L = 1.2 m, and carries a current | = 3.0 A ( clockwise). The magnetic field due to the magnet is uniform and of magnitude 0.90 T. The loop rotates in the magnetic field. What is the magnitude of maximum torque acting on the wire due to the magnetic field? B WC N L A D O 0.40 N · m O 0.83 N · m O 0.48 N · m O 0.97 N · m O 0.88 N · mOption 2: a. An electron is moving at a speed of 4.45 x 105 m/s from north to south in a magnetic field that runs from [NE] to [SWJ. If the magnetic force balances the gravitational force on the electron, determine the strength of the magnetic field. b. Now consider a 50.0 cm long wire with a mass of 60.0 g that carries a current of 15.0 A from north to south. The uniform magnetic field is perpendicular to the above- mentioned wire. What the minimum magnetic field strength and direction that will balance the weight of the wire?
- A negatively charged ion with an excess electron moving with a velocity vx = 1.095 x103 m/s is introduced into a magnetic field Bz = 4 mTesla perpendicular to the ion’s direction of motion. The ion travels in a semi circle of diameter d = 8 cm before striking a detector. What is the ion? Select one: a. 32S b. 12C c. 16O d. 14NA segment of wire of total length 2.0 m is formed into a circular loop having 12 turns. If the wire carries a 1.2 A current, determine the magnitude of the magnetic field at the center of the loop. a. 340.70 µT O b. 196.70 µT c. 400.32 µT d. 177.12 µT e. 28.39 μΤ006 A solenoid 2.1 m long has a radius of 0.75 cm and 900 turns. It carries a current of 2.5 A. The permeability of free space is 4T X 10 T m/A. What is the approximate magnetic field on the axis of the solenoid? Answer in units of mT.
- A current of 20.0 mA is maintained in a single circular loop of 2.20 m circumference. A magnetic field of 0.410 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. If you know the circumference of a circle, how do you find the area? mA. m² (b) What is the magnitude of the torque exerted by the magnetic field on the loop? A magnetic dipole will tend to orient so that the plane of the loop is perpendicular to the magnetic field. mn. mAn electron moves in a circular path with a speed of 1.22 x 10' m/s in the presence of a uniform magnetic field with a magnitude of 2.12 mT. The electron's path is perpendicular to the field. (a) What is the radius (in cm) of the circular path? cm (b) How long (in s) does it take the electron to complete one revolution? SA segment of wire of total length 2.0 m is formed into a circular loop having 33 turns. If the wire carries a 1.2 A current, determine the magnitude of the magnetic field at the center of the loop. a. 78.08 µT O b. 1487.57 µT O c. 1339.47 µT d. 3027.42 µT e. 2576.57 µT