For each of the cases in which you predicted that there will be an induced current, draw a diagram that illustrates: • the direction of the current through the wire of the loop, • the direction of the magnetic moment of the loop, and • the direction of the magnetic force exerted on the loop.
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- L. Determine the magnetic field at point P shown in the diagram at the right. The wire carries a current i and has a lengthL I P•In all problems specify the directions using the following convention: North (↑), South (4), East (→), West (+), into the page 8, and out of the page O. 1. Figure 1 shows the cross-sectional view of a current carrying loop. Figure 1 The magnetic north pole of the current loop is (A) at the top side of the loop (C) at the left side of the loop (E) current loops do not have magnetic poles (B) at the bottom side of the loop (D) at the right side of the loop The south pole of a bar magnet is brought toward a current-carrying loop suspended from a string as shown in Figure 2. 2. 0 S S Figure 2 Which way does the current-carrying loop move as the magnet is brought near the loop? (С) > (A) ↑ (В) { (D) + (E) ® (F) ©Please answer this and explain how you found the answer! Indicate the direction of the induced current in each loop by writing clockwise, counterclockwise, or none.
- Advanced Physics Question-I: The core in the magnetic circuit shown in Fig.1 is made up of sheet-steel and excited with DC current to produce a flux (g) of 5×10-4 Wb in the air-gap. Data for the B-H characteristic of the core is given below in Fig.2. The cross-section of the core, A. = 10 cm². The coil has N = 1000 turns. Also, g = 5 mm and lc= 40 cm. The effects of fringing fields at the air-gap and leakage flux are not neglected. a) Determine the coil current (I). b) Calculate the energy stored in the air-gap (W g). lc = 40cm c) The coil is now excited with an AC current of 50 Hz. If the maximum flux produced Pmax = 6 × 10-4 Wb, find the effective (rms) value of the voltage applied across the coil terminals (Vrms). N= 1000 VZzcm g= 5mm 4 5cm E Fig.1: Magnetic Circuit 1.25 1 0.75 0.5 0.25 200 425 650 875 1100 1325 1550 1775 2000 Flux Intensity, H (A-turn/m) Fig.2: DC magnetization curve for sheet-steel Flux Density, B (Wb/m²)please explainFor the wire loop of the figure, calculate the magnetic field at O. Comment on the force exerted on the loop and its motion if it is in a homogeneous magnetic field perpendicular and then parallel to the page.
- Why does the induced current change direction when the magnet is halfway through? (Address what is happening to the magnetic flux and the direction of the induced magnetic field.) THank you for your helpConsider 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 4.10 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 0.56 m.A bar magnet is held stationary while a circular loop of wire is moved toward the magnet at constant velocity at position A as in the figure below. The loop passes over the magnet at position B and moves away from the magnet at position C. (For the following questions, state the directions as if you were to the right of the magnet, watching the loop of wire move away from you.) C B A (a) Find the direction of the induced current in the loop using Lenz's law at position A. clockwise counterclockwise No current is induced. (b) Find the direction of the induced current in the loop using Lenz's law at position C. clockwise counterclockwise No current is induced. (c) What is the induced current in the loop at position B? (Position B has the center of the loop exactly at the midpoint of the bar magnet.) clockwise counterclockwise No current is induced. Explain.
- Parts e and fIndicate the direction of the induced current in each loop by writing clockwise, counterclockwise, or none for each of the 2 pictures. Please also explain the steps you used to get there/the physics behind why/how you got to the answer to help me better understand. Thank you soo much.A straight wire carries a current when which is changing in time as shown in the right graph. At what time period A to D is the induced current in the loop positioned nearby is the largest absolute value.