A0.320-m-long metal bar is pulled to the left by an applied force F. The bar rides on parallel metal rails connected through a 45.0 N resistor, as shown in (Figure 1), so the apparatus makes a complete circuit. You can ignore the resistance of the bar and rails, The circuit is in a uniform 0.650 T magnetic field that is directed out of the plane of the figure. Part A At the instant when the bar is moving to the left at 5.90 m/s, is the induced current in the circuit clockwise or counterclockwise? O clockwise O counterclockwise Figure 1 of 1 Part B What is the rate at which the applied force is doing work on the bar? Express your answer with the appropriate units. μΑ ? P = Value Units
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- Consider a conducting ring of radius a and resistance R. Case I We first place the ring in a constant magnetic field B = shown in Figure 9. Bo pointing into the page as a) Calculate the magnetic flux through the ring. Express the answer in terms of the defined parameters in the problem.Find the direction of the magnetic field at each of the indicated points. What is the direction of the magnetic field Bc at Point C? O Bc is out of the page. O Bc is into the page. O Bc is neither out of nor into the page and Bc + 0. O Bc = 0. Figure 1 of 2 Part D What is the direction of the magnetic field Bp at Point D? A O Bp is out of the page. O Bp is into the page. O Bp is neither out of nor into the page and BD # 0. O BD = 0Two wires lie perpendicular to the plane of the paper and equal electric currents pass through the paper in the directions shown. Point P is equidstant from the two wires. a) Construct a vector diagram showing the direction of the resultant magnetic field at point P due to currents in these wires. Explain your reasoning. b) If the currents in both wires were instead directed into the plane of the page (such that the current moved away from us), show the resultant magentic field at point P.
- Q. Consider the configuration shown on the right, the inner cylindrical conductor of radius 'a' surrounded by a cylindrical shell of inner radius 'b' and outer radius 'c'. The inner conductor and the outer shell each carry equal and opposite currents I. Where I is uniformly distributed through the conductors. a I a) Find the magnetic field intensity for r< a and aIn Figure 3 a circular loop of wire of radius R is initially located in the plane of the page while a uniform Magnetic field of magnitude 5 T is coming out the page in the 2 = (0,0,1) direction (represented by the "x"'s). At time t = 0 the loop begins to rotate in uniform circular motion such that the top begins moving out of the page and the bottom moves into the page with a frequency of 5 seconds (i.e. the loop has the same orientation as that at t=0). For arbitrary time t > 0 I. II. III. IV. y Determine the unit normal of the area of the loop, ñ, as a function of time. Determine the vector describing the area of the loop, A. Determine the magnetic flux moving through the loop as a function of time. If current is allowed to move through the loop, determine the induced EMF in the conducting loop and the associated induced Electric field (make sure to explain the direction of the Electric field.) X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X…A straight wire with a length of 60.0 cm is bent into a perfect circle and placed in a perpendicular magnetic field as illustrated below. The magnetic field is changing at a rate of 12 T/s. Hint: for a circle... c = 2nr A = ar² N Part A If resistance of the wire loop is 3.2 N, the electric current in the wire will I= АThe magnetic field B at all points within the colored circle of the figure (Figure 1)has an initial magnitude of 0.700 T. (The circle could represent approximately the space inside a long, thin solenoid.) The magnetic field is directed into the plane of the diagram and is decreasing at the rate of 0.0300 T/s. Figure X X X X X B X /b X 1 of 1 10.0 cm Part C What is the current in the ring if its resistance is 4.00 $? ΑΣΦ I = Submit Part D X Incorrect; Try Again; 5 attempts remaining What is the emf between points a and b on the ring? ε = Previous Answers Request Answer Submit Part E ΠΙΑΣΦ Request Answer ? IVE ΑΣΦ ? A If the ring is cut at some point and the ends are separated slightly, what will be the emf between the ends? ? VIn order to get full credit, you need to show all your work. A conducting coil with 10 windings (R = 40 cm) and a straight wire are in the yz plane and carry current I = 3.0 A in the direction shown. Point P is a distance x = 60 cm from the center of the ring. A) Find the magnitude and direction of the magnetic field of each current source at point P. Z S I у B) What is the magnitude and direction of the magnetic force on an electron as it passes through point P with velocity 4x104m k? P XA U-shaped conductor is locked in place while a vertically aligned, 3.0m-long cylindrical conductor slides across it to the left with a speed of 4.0m/s. The conductors maintain contact at all times forming a closed loop. An external magnetic field of 3.0T passes through the conductors as shown (in the image) A) At the moment the two conductors form a perfect square, what is the magnetic Flux passing between them? Is this Flux increasing or decreasing? B) What are the directions of the induced current and the induced magnetic field the conductors generate? Explain how you know your answers.Two long wires, one of which has a semicircular bend of radius R and center P, are positioned as shown below. If both wires carry a current I, how far apart must their parallel sections be so that the total magnetic field at P is zero? Express a in terms of R. Does the current in the straight wire flow up or down? Explain. The infinite, straight wire shown below carries a current I1. The rectangular loop, whose long sides are parallel to the wire, carries a current I2. What are the magnitude and direction of the total magnetic force on the rectangular loop due to the magnetic field of the long wire?A 50 g horizontal metal bar, 15-cm-long, is free to slide up and down between two tall, vertical metal rods that are 15 cm apart. A 5.5×10-2 T magnetic field is directed perpendicular to the plane of the rods. The bar is raised to near the top of the rods, and a 1.2 resistor is connected across the two rods at the top. Then the bar is dropped. Part A What is the terminal speed at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times. Express your answer in meters per second. 跖 ΑΣΦ ? v = Submit Request Answer m/sj ust A please!