i into paper axle in/out magnetic field B a i out of paper cw / ccw big / small cw / ccw big / small d' cw / ccw big / small cw / ccw big / small f e cw / ccw big / small cw / ccw big / small
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- pls help me with the following question and make sure is 100% correct, pls and thank you A long wire carrying I� = 6.95 AA of current makes two bends, as shown in (Figure 1). The bent part of the wire passes through a uniform 0.290 TT magnetic field directed as shown in the figure and confined to a limited region of space. Part A. Find the magnitude of the force that the magnetic field exerts on the wire. Express your answer in newtons. Part B Find the direction of the force that the magnetic field exerts on the wire. Give your answer as a clockwise angle in degrees from the left-hand straight segment.Consider a system made up of two semicircular loops, one of radius ? and the other of major radius ? that carries a current ? in a clockwise direction; in addition, a straight wire, of great length, which is placed as shown in the figure. Calculate: 1. the magnetic field produced by the coil system at its center. 2. The intensity and direction of the current that must pass through the vertical straight wire to the magnetic field at the center of the loop is zero. Give your answer in terms of ?, ? and ?.In the diagram above, a bar magnet is brought closer to a conducting wire loop with 7 Ω of resistance. As a result a uniform 3 A current is induced in the wire. What is the direction of the induced magnetic field at the center of the loop? Explain the reasoning behind your selection in detail.A) UpB) DownC) ClockwiseD) CounterclockwiseE) Cannot be determined
- A loop of wire is horizontal. A bar magnet is pushed toward the loop from below, along the axis of the loop, as shown.a. In what direction is the current in the loop? Explain.b. Is there a magnetic force on the loop? If so, in which direction? Explain.Hint: Recall that a current loop is a magnetic dipole.c. Is there a magnetic force on the magnet? If so, in which direction?Suppose you are holding a circular ring of wire in front of youand (a) suddenly thrust a magnet, south pole first, away fromyou toward the center of the circle. Is a current induced inthe wire? (b) Is a current induced when the magnet is heldsteady within the ring? (c) Is a current induced when youwithdraw the magnet? For each yes answer, specify thedirection. Explain your answersImagine moving along the axis of the current-carrying loop given above, starting at a point well to the left of the loop and ending at a point well to the right of the loop. (a) How would the magnetic field strength vary as you moved along this path? (I) it would be the same at all points along the path (ii) it would increase then decrease (iii) it would decrease then increase (b) Would the magnetic field direction vary as you moved along the path? Yes or no?
- a) What would happen to the magnetic field and the current if the direction of motion of the magnet is reversed? b) What would happen to the magnetic field and the current if the magnet is moved more quickly in the same direction? c) What would happen to the magnetic field and the current if the magnet is moved rapidly back and forth? My Answer: I attached my answer below as well as the drawing of the coil and magnet. I am just unsure as to whether my first to answers (a and b) are correct and then for c), what the affect on the magnetic field is. a) Current: If the direction of motion of the magnet was reversed then the direction of the current would also be reversed. Magnetic Field: Since the magnetic field in the coil wants to oppose the moving magnetic field, an induced magnetic field will be created that will attract the magnet and prevent it from moving away from the coil. b) Magnetic Field and Current: If the magnet moved more quickly in the same direction, then the…Hi please help: A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown below. The current in the wire points to the right and is of magnitude I. In which direction must the current flow in the loop to produce zero magnetic field at its center? ExplainA 10 cm wire carrying a current of 20 A is placed in a uniform magnetic field of 0.3 T. ifthe wire makes an angle of 40° with the vector of magnetic field, find the magnitude ofthe force on the wire.2. Should you expect that a straight line would go through the origin for each experiment?3. What assumptions are made in each experiment about the magnetic field produced by themagnets?4. Summarize the results of the 3 experiments and discuss how they are related to Equation
- A pair of parallel conducting rails that are L = 22 cm apart lies at right angles to a uniform magnetic field of 0.4 T directed into the page, as shown in the figure below. A R = 14 Ω resistor is connected across the rails. A conducting bar is moved to the right at 2 m/s across the rails. 1)What is the current in the resistor? (Express your answer to two significant figures.) 2)What is the magnetic force on the bar due to the induced current? (Express your answer to two significant figures.)The magnets shown in the sketch are dropped from rest through the middle of conducting rings. Notice that the ring onthe right has a small break in it, whereas the ring on the left forms a closed loop. (a) As the magnets drop toward the rings,do you predict that the magnet on the left has an acceleration that is greater than, less than, or the same as that of themagnet on the right? (b) Which of the following is the best explanation for your prediction?I. Both magnets fall with the acceleration due to gravity. The rings have no effect.II. The magnet on the left has a greater downward acceleration because the ring exerts an attractive force on it.III. The magnet on the right has the greater downward acceleration because the gap prevents a current that would exert arepulsive force on the magnet.A coil of wire carries current I as shown in the figure. If the observer could “see” the magnetic field inside this arrangement of loops, how would it appear?