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A: i1 = 6.3 A i2 = 2.8 A
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Briefly explain the physical reason why the H field is different to the magnetic field B in a metal.
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- The magnetic dipole moment of the iron atom is about 2.11023Am2 . (a) Calculate the maximum magnetic dipole moment of a domain consisting of 1019 iron atoms, (b) What current would have to flow through a single circular loop of wire of diameter 1.0 cm to produce this magnetic dipole moment?A superconducting wire of diameter 0.25 cm carries a current of 1000 A. What is the magnetic field just outside the wire?DETAILS OSUNIPHYS1 28.6.P.049. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The cross-sectional dimensions of the copper strip shown are 2.0 cm by 2.0 mm. The strip carries a current of 200 A, and it is placed in a magnetic field of magnitude 8 = 2.4 T. What are the value (in V) and polarity of the Hall potential in the copper strip? (Assume the charge carrier density of copper is 8.0 x 1028 electrons/m³). B 18. value polarity + The -Select- of the strip is at a higher potential. Additional Materials. Reading 2.0 cm X 2.0 mm Submit Answer
- Give a detailed drawing and physics equations to explain how the Hall effect can be used to finddrift speed in metallic conductors. Explain what other parameters must be known in order to get areliable quantitative result, based on your equations.Imagine, the north pole of the magnet is the positive side. try and PREDICT, how the negative electrons in the metal would react to the electric force of the positive pole of the magnet?In 150 to 200 words Explain clearly why iron filing line up in a magnetic field. Would copper filing be equally satisfactory?
- Describe what steps must be undertaken in order to convert an unmagnetized iron rod into a permanently magnetized state. As part of your answer, explain what is a magnetic domain and how it responds to the steps described.Consider the diagram below showing 2 two current loops (a square and circle centered about the same point. If the currents in each loop are in opposite directions and the current in the square loop is 3.13 A, what must the current in the circular loop be if the net magnetic field at the center is zero? Let the radius of the circle be 0.146 m.in this problem we'll look at a square loop of wire, L is 3mm and W is 4mm, which is rotating in a constant, 8T magnetic field. the loop has 25 turns. a. for parts a-c assume loop has constant current of 80A, moving clockwise around the loop. what is the magnetic moment of the loop? b. the normal of the loop wire is initially perpendicular to the magnetic field direction. describe the motion of the loop of wire when it is released in this position. what direction will it turn? c. what is the torque (magnitude) on the loop when the normal makes a 35 degree angle with the magnetic field? d. now assume the loop is connected to a generator (no longer constant 80A) that rotates the loop at a constant speed of 80m/s (with the right side of the loop rotating into the page, and the left side out of the page.) how much torque does the generator have to provide to the liip, when the normal makes a 35 degree angle with the magnetic field, to maintain speed of 80m/s? e. what direction is the…
- A straight wire of length 45 cm is moved an angle of 30° to a uniform magnetic field of 2.0 x 106 T with speed of 3.5 ms'. Calculate the induce e.m.f produced in the wire. If the wire is connected to circuit of resistance of 2.0 Q, determine the amount of charge will flow in the circuit. Suggest one way by which this amount of charge may be increased. With the help of a diagram, explain your answer.UCF PHY2054 Post Lab - Unit 07 Magnetic Fields Due to Currents 1. Consider a point 1.0 cm away from a long, straight wire. For each case below, give the current that is needed to generate listed magnetic field strength. a. Surface of the Earth- 5X10T b. Refrigerator magnet- 5x10 T c. Laboratory magnet- 0.1 to 1 T d. Superconducting magnet- 10 TWhat magnetic field strength will allow the electron to pass between the plates with out being deflected? express your answer in Tesla