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- I decreasing In the figure above, a loop is located near a long wire with current flowing as indicated. 8The original B field penetrating the loop points the page. O If the current in the wire decreases, then the magnetic flux o in the loop 0Therefore, the loop generates an induced B field that points the page. e This induced B field is due to an induced current that flows in the loop.How will the coil move due to the magnet? To the left, to the right, rotate clockwise, rotate counterclockwise, cannot be determined.Please help with an explanation. The answer is not B or C so please do not respond if that's the answer you're going to give.
- A single turn coil of radius 4.50 cm is held in a vertical plane and a magnet is rapidly moved relative to the coil as shown in the diagram below. N coil The field inside the coil changes from 0.370 T to 0.550 T in 0.120 s. If the resistance of the coil is 3.70 N, what are the magnitude and direction of the induced current in the coil as viewed from the side of the magnet? magnitude mA direction ---Select---c) Indicate the magnetic poles of the coil, and draw the induced magnetic field and the direction of the induced current. V15b
- In a physics laboratory experiment, a coil with 210 turns enclosing an area of 11.7 cm² is rotated during the time interval 5.00×10-² s from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.60×10-5 T. Part A What is the magnitude of the magnetic flux (initial) through the coil before it is rotated? Express your answer numerically, in webers, to at least three significant figures. ▸ View Available Hint(s) Finitial Submit Part B 197| ΑΣΦ |Pfinal= con What is the magnitude of the magnetic flux final through the coil after it is rotated? 5 ΑΣΦ ? Express your answer numerically, in webers, to at least three significant figures. ▸ View Available Hint(s) wand ᎳᏏ ? WbInduction: Part C If the magnetic field steadily decreases from B to zero during a time interval t, what is the magnitude E_cal of the induced emf? (Express your answer in terms of x, y, B and t.) Part D If the magnetic field steadily decreases from B to zero during a time interval t, what is the magnitude I of the induced current? (Express your answer in terms of x, y, B, t and the resistance R.)P2 The number of turns of a solenoid of length L = 0.5 m is N = 2000, the area of its cross section is A = 16 cm?. At a moment the current in the coil changes at a rate of 100 A/s. What is the induced voltage in that long straight wire of length 2l = 20 cm (the wire is next to the centre of the coil) which I(t), I(t) 2l 20 b) a) is perpendicular to the axis of the coil, if its two ends are equidistant from the coil, and its centre is at a distance of l from the coil; b) has the same direction as the previous one, and one of its end is at a distance of l from the axis of the coil?
- A step-down transformer produces a voltage of 7.0 V across the secondary coil when the voltage across the primary coil is 100 V Part A What voltage appears across the primary coil of this transformer if 100 V is applied to the secondary coil? Express your answer using two significant figures. V₂ = PA [V=| ΑΣΦ 6 ? VAn electric generator has an 18-cm-diameter, 120-turn coil that rotates at 60 Hz in a uniform magnetic field that is perpendicular to the rotation axis. ▼ Part A What magnetic field strength is needed to generate a peak voltage of 210 V? Express your answer with the appropriate units. B = 0.20 Submit HA T 22 Previous Answers Request Answer ? X Incorrect; Try Again; One attempt remaining