. A conducting bar moves with velocity v near a long wire carrying a constant current / as shown in the figure. The distance of each end of the bar to the wire is given by a and b, respectively. Find the potential difference between the two ends of the bar. b 4 V a
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- (a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60V Hall voltage between its wing lips when in level flight over the north magnetic pole, where the Earth's field strength is 8.00105T ? (b) Explain why very little current flows as a result of this Hall voltage.What Hall voltage is produced by a 0.200T field applied across a 2.60-cm-diameter aorta when blood velocity is 60.0 cm/s?Two concentric circular wines with different diameters carry currents in tire same direction. Describe the force cm the inner wire.
- An ordinary gold wedding ring is tossed end over end into a running MRI machine with a 4.0 T field. The ring spends 1.2 s in the field, during which it completes 60 full rotations. If the ring has a resistance of 6.02 and a diameter of 19 mm, what is the average power Pavg dissipated by the ring? Pave TOOLS ΣΤΟΥ Wbeen having trouble with this, how would you solve this? An electron is injected between two oppositely charged parallel plates connected to a DC voltage supply. The distance between the plates is 6.50 mm and the electron, initially at rest, accelerates towards the positive plate gaining 8.25 ´ 10-18 J of kinetic energy. Based on the above information, what will the mption of electrons be? (uniform motion towards the neg/pos plate, accelerated motion towards neg/pos plate) please explain step by step3. Coaxial cables are often used to connect electrical devices, for instance in receiving signals in TV cable systems. Figure below shows a long coaxial cable as consisting of two thin concentric cylindrical conducting shells of radii a and b and length 1. The conducting shells (regions: r < a and a < r < b are hollow) carry the same current I in opposite directions. Imagine that the inner conductor carries current to a device and that the outer one acts as a return path carrying the current back to the source. The magnetic field is perpendicular to the blue rectangle of length / and width b-a; the cross section of interest is shown. b dr B Calculate the self-inductance L of this cable. Calculate the total energy stored in the magnetic field of the cable.
- An accelerating voltage of 2.71 x 10³ V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 32.7 cm away. What is the magnitude of the deflection on the screen caused by the Earth's gravitational field? What is the direction of the deflection on the screen caused by the Earth's gravitational field? O up down O east west m What is the magnitude of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 μT down? mm What is the direction of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 μT down? O north O south O east O west Does an electron in this vertical magnetic field move as a projectile, with constant vector acceleration perpendicular to a constant northward component of velocity? O Yes O No Is it a good approximation to assume it has this projectile motion? O Yes Nodle X COE Question 4 Finish attempt.. The figure shows, in cross section, several conductors that carry currents through the plane of the figure. The currents have the magnitudes I, = 4 A,l2 = 6 A, and I3 = 2 A, and the directions shown. Four paths, labeled a through d, are shown. Not yet answered Marked out of What is the line integral OB.dL for the path b 2.00 P Flag question 1,0 d. Select one: 1.01 x 10 Tm 2.14 x 10 T.m -5.03 x 105 Tm 2.51 x 10-6T.m None of these is correct 3.01 x 10 Tm X.Two parallel conductors are carrying currents 6 A and 9 A. If they are placed 2.4 m apart, where should a third conductor carrying 4.20 A in the reverse direction be placed between the 6-A and 9-A conductors such that the 9-A conductor does not experience an overall force per unit length of zero? a. ) The third conductor should be placed 7.52 micrometers from the 9-A conductor, between the 6-A and 9-A conductors. b.) The third conductor should be placed 1.68 micrometers from the 9-A conductor, between the 6-A and 9-A conductors. c.) The third conductor should be placed 4.57 micrometers from the 9-A conductor, between the 6-A and 9-A conductors. d.) The third conductor should be placed 2.57 micrometers from the 9-A conductor, between the 6-A and 9-A conductors.
- a.Find H in rectangular components at P(3,4,2) If there is a current filament on the z axis carrying 5 mA in the az direction. b. Repeat if the filament is located at x = -1, y = 2. (c) c. Find H if both filaments are present.Two infinitely long parallel wires are at a distance of 5.0 cm apart. If the wires carry a current of 5.1A, what is the exchanged force per meter between the wires ( in units of uN )? Select one: O A. 104.0 O B. 135.3 O C. 83.2 O D. 59.8 O E. 122.2 Next pThe figure shows two parallel current-carrying conductors with currents 4 = 8.0 A and k = 5.0 A. For the closed path C, the magnitude (in uT.m) of the line integral dï is 1,0 O, noliill O a. 7.5 كلية العلوo O b. 6.3 O c. 5.0 O d. 3.8 O e. 4.5
