(11%) Problem 3: Suppose that a 0.325 m radius, 500 turn coil produces an average emf of 8550 V when rotated one-fourth of a revolution in 4.08 ms, starting from its plane being perpendicular to the magnetic field What is the peak emf generated by this coil, in volts? Grade Summary En= Deductions 0% Rotontio 10006

(11%) Problem 3: Suppose that a 0.325 m radius, 500 turn coil produces an average emf of 8550 V when rotated one-fourth of a revolution in 4.08 ms, starting from its plane being perpendicular to the magnetic field What is the peak emf generated by this coil, in volts? Grade Summary En= Deductions 0% Rotontio 10006

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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2. The figure below shows a 99-turn square coil rotating about a vertical axis at at ? = 1,520 rev/min. The length of a side of the coil is 20.0 cm. The horizontal component of the Earth's magnetic field at the coil's location is equal to 2.00 ✕ 10−5 T. a) What is the magnitude of the maximum emf (in mV) induced in the coil by the Earth's magnetic field? mV b) What is the orientation of the coil with respect to the magnetic field when the maximum emf occurs? The plane of the coil is oriented 45° with respect to the magnetic field. The plane of the coil is perpendicular to the magnetic field. The plane of the coil is parallel to the magnetic field.
The plates of a spherical capacitor have radii 48.4 mm and 52.2 mm. (a) Calculate the capacitance. (b) What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance? (a) Number i (b) Number i Units Units A
1.) Should the speed at which a magnet is moved through a coil of wire affect the measured peak voltage across the coil? If so, how? 2)If a magnet is moved through a coil of wire South pole first instead of North pole first, how should the measured voltage response be affected? 3) Should the number of individual coils in the wire have an effect on the measured emf? If so, how? 4) Below draw a graph of the expected magnetic flux through a point in the coil as a function of time as the magnet passes through the coil.
~Vout ARMATURE 1491677 2854 THEZZ ROTATING STATOR FIELD COIL CORE DC EXCITATION A simple model of an electric generator consists of a square coil with 10 turns of wire, rotating in a uniform magnetic field B, as Parameters are given below. Determine the maximum emf around the coil. shown. Parameter values: B = 0.38 T; period of rotation = 0.1 s; (in V) dimensions of the coil= 10 cm by 10 cm. OA: 1.089 OB: 1.274 OC: 1.491 OD: 1.744 OE: 2.041 OF: 2.388 OG: 2.794 OH: 3.268
A tangent galvanometer has 50 turns and mean diameter 2n cm. The horizontal component of earth's magnetic induction at a place is 3 x 103 T. Calculate (i) reduction factor (ii) current required to produce deflection of 45° Ho = 4T × 107 S.I.Unit %3D
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4. The magnetic field between the poles of the electromagnet is uniform at any time, but its magnitude is increasing at the rate of 0.01T/s. The area of the conducting loop in the field is 1m?, and the total circuit resistance, including the meter, is 10N. (a) Explain Faraday's law. (b) Find the induced emf and the induced current in the circuit.
Current Attempt in Progress A circular coil (720 turns, radius = 0.084 m) is rotating in a uniform magnetic field. At t=0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.021 s, the normal makes an angle of 45° with the field because the coil has made one-eighth of a revolution. An average emf of magnitude 0.048 V is induced in the coil. Find the magnitude of the magnetic field at the location of the coil. Number Units
3. Consider thc arrangcmcnt shown in the Figurc. Assume that R = 6.002, 1 =1.20m, and a uniform 2.50T magnetic field is directed into the page. At what speed should the bar be moved to produce a current of 0.500A in the resistor? R Fapp Mr
1. A generator is shown below. If the period of rotation of the spinning loop of wire is T, what is the fraction of a period between maximum magnetic flux and minimum induced emf? Magnetic Poles Magnetic Flux N Wire Loop (the conductor) Slip-rings. Carbon Brushes Axis of Rotation
4. Consider a square-shaped conducting coil with 75 turns of wire. Each turn of the wire has a length of the side equal to 12 cm. A uniform magnetic field is directed perpendicular to the plane of the coil. If the magnetic field changes linearly from 0 to 0.35-T in 0.40 s, what is the magnitude of the induced EMF inside the coil while the magnetic field is changing?
4. possible emf when the loop is placed in a time-varying magnetic field. You investigate the three loop geometries in Figure A: a long, thin rectangle; a square; and a circle. Which one will give the largest emf? 1 mm O Figure A