College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- 2. A wire of infinite length carries a current of 15A in a uniform magnetic field of magnitude 0.55T as indicated in the figure. (a) Find the force on a one meter length of the wire. (b) If the angle that the wire makes with the magnetic field is tripled, what happens to the direction of the force? Is the magnitude of the force tripled? Explain your answer. B 20arrow_forward2) Draw the B-field lines for the following magnetic sources. Explain how you knew to draw the lines this way. Scientific Abilities Can make statements about relationship between magnetic sources and magnetic fields Scientific Abilities Can make statements about the relationship between magnetic sources and magnetic fields Scientific Abilities Can make statements about the relationship between magnetic sources and magnetic fields Missing No attempt is made to relate magnetic sources and magnetic fields Missing No attempt is made to relate magnetic sources and magnetic fields N Missing No attempt is made to relate magnetic sources and magnetic fields Inadequate An attempt is made to relate B-field lines to magnetic sources, but serious mistakes were made. B-field lines are not consistent with sources or are not closed loops. - I Inadequate An attempt is made to relate B-field lines to magnetic sources, but serious mistakes were made. B-field lines are not consistent with sources or are…arrow_forward1. Two straight parallel wires, running north/south are separated by 10 cm and carry currents of 3A in the same direction (north). a) Find the magnitude and direction of the magnetic field at a point midway between the wires. b) Find the magnetic field 6 cm east of the "easternmost" wire. c) Calculate the force of one wire on the other. Is it attractive or repulsive?arrow_forward
- Consider a solid cylindrical conductor with radius R=17cm that carries a current I1=−12mA which is uniformly distributed along its cross-section. Note: Negative direction of current points in the direction opposite to that of shown in the figure a) Find the magnitude of the magnetic field at point r1=14cm. b) Find the magnitude of the magnetic field at point r2=19cm. c) Draw a diagram of B(r) vs r with respect to the symmetry axis of the cylindrical conductor.arrow_forward1- A proton travels with a speed of 3 x 10° m/s at an angle of 30° with the direction of a magnetic field of 0.2 T in the +y direction. What is the magnitude of proton's acceleration? (Assume the gravitational force on proton is negligible) m,= 1.67 x1027 kg 9p=1.6 x10-19 C a) O 36.79x1012 m/s² b) O 45.51x1012 m/s? c) O 28.74x1012 m/s² d) O 37.94x1012 m/s² e) O 72.43x1012 m/s2arrow_forwardThe magnitude and direction of the magnetic field at that point at a distance of 5 cm from three very long conductive wires, perpendicular to the plane of the page and parallel to each other, on which a current of 5 amperes flows, a) i1 ,i2 ,i3 currents in the same direction into the page plane, b) Find if i is outwards, i2 and i3 are inwards. ( k=10-7 n/amp2)arrow_forward
- Two long, straight wires are separated by 0.12 m. The wires carry currents of 3.0 A in opposite directions, as the drawing indicates. 0.030 m 0.120 m 0.060 m (a) Find the magnitude of the net magnetic fies at the point A. (b) Find the magnitude of the net magnetic field at the point B. T. Additional Materials O eBook 1321 MAR 17 étv MacBook Air 80 DII esc F1 F2 F3 F4 F5 F6 F7 F8 ! @ #3 $ & * 2 3 4 * 00 < (Oarrow_forward2) region of uniform magnetic field B, that is vertically downward. Give your answers in terms of e, m, B, v and n. a) Calculate the magnetic force F (Magnitude and direction) acting on the proton. b) Calculate the time t at which the proton's velocity will be directed westward the first time in its At time t = 0 a proton is projected with an initial velocity v, horizontally northward in a travel. W- -E protonarrow_forwardHi please help: The long, thin wire shown below is in a region of constant magnitude field B. The wire carries a current of 6.2 A and is oriented at an angle of 7.5 degrees to the direction of the magnetic field. A) If the magnetic force exerted on this wire per meter is 3.1 x 10^-2 N, what is the magnitude of the magnetic field? Express answer using two significant figures. B=_____ mTarrow_forward
- Imagine a straight wire that is perpendicular to this page. If a current flows in the wire in a direction that is out of this page (toward you), the magnetic field of the wire will be a) radial and point away from the wire. b) radial and point toward the wire c) circles centered on the wire and point counter clockwise d) circles centered on the wire and point clockwisearrow_forward02A) a proton moves at 7.50 x 10 perpendicular to a magnetic field. The field causes the proton to travel in a circular path of radiusim What is the field strength? (a) at what speed will a proton move in a circular path of the same radius as the electron (b) What would the radius be if the proton had the same momentum?arrow_forwardWhich of the following is/are correctly stated? The magnitude of the magnetic field produced by a long and straight conductor carrying I-I current is inversely proportional to the distance r from the conductor. I- If current flows in the same direction in two long and parallel conductors, these conductors attract each other. III- The magnetic force per unit length between the conductors depends on the currents passing through the conductors and the 20 - distance between them. The magnetic field created by the current I passing through a ring of radius IV-a is inversely proportional to the radius a. a) I, II, III, IV O B) only I O C) I, II, III O D) I, III ΟΤΟ) 1, Varrow_forward
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