A straight wire of length 70 cm carries a current of 40 A and makes an angle of 60° with a uniform magnetic field. If the force on the wire is 1.0 N what is the magnitude of B? Select one: a. 82.5mT b. 55mT с. 41mT d. 33mT

A straight wire of length 70 cm carries a current of 40 A and makes an angle of 60° with a uniform magnetic field. If the force on the wire is 1.0 N what is the magnitude of B? Select one: a. 82.5mT b. 55mT с. 41mT d. 33mT

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)...

See similar textbooks

Similar questions

A long, straight, wire carries a current I = 4.2 A out of the page. What is the magnitude and direction of the magnetic field at point Pa distance r = 2 m to the right of the wire? O A. 420 nT, upward ов. 0.21 рТ, upward ос. 0.42 дТ, downward O D. 210 nT, upward
In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a 17.5 cm. Each wire carries 7.50 A, and the currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3. In unit-vector notation, what is the net magnetic force per meter of wire length on wire 4? Number i ! Units N/m
A 11.5 cm long solenoid contains 831 turns and carries a current of 5.05 A. What is the strength B of the magnetic field at the center of this solenoid? B = T
A solenoid is used to create a 27.0 mT magnetic field at its center. It has a radius of 1.40 cm and a lengthof 40.0 cm. The wire can carry a current of 12.0 A.a. What is the number of turns the solenoid must have?b. What is the total length of wire required to build it?c. If an electron is moving inside the solenoid with a velocity of 5.60 X106 m/s, how much will be theradius of curvature of its path if the magnetic field is perpendicular to its velocity?d. If the same wire is used to build another solenoid with 500 turns and a length of 75.0 cm, how muchwill be the radius of this new solenoid?e. If an external magnetic field acts on the new solenoid with a magnitude of 5.00 µT in a directionperpendicular to its plane, how much will be the net torque exerted on it? Ignore the magnetic fieldcreated by the solenoid itself.
Select the correct expression for the magnitude of electromotive force (e.m.f) of a straight conductor of length I moving with the velocity v perpendicular to a magnetic field B. Select one: a. € = Bu/I b. € = VBul C. E = Bul d. e = Bul?
A long, straight wire with a circular cross section of radius R carries a current I. Assume that the current density is not constant across the cross section of the wire, but rather varies as J = ar where a is a constant. What is the magnitude of the magnetic field B(r) for r ≤ R? Ο A. B = μια 8R B. B = μα O C. B D. O = B: = μοα Moα R² 비침 비침 비침 R³ 3r
A long straight wire carries a current of 40 A in a region where a uniform external magnetic field has a 30 µT magnitude and is parallel to the current. What is the magnitude of the resultant magnetic field at a point that is 3.5 cm from the wire? a. 230.53 µT O b. 77.74 µT с. 65.31 иT d. 428.67 µT е. 30.00 иT
S long, straight wire allows 3.5 A through it. What is the magnitude of the magnetic field 25 cm from the wire?
A conductor consists of a circular loop ot radius R= 10.0 cn and two long, straight sections as shown In the figure below. The wire lies in the plane of the page and carries a current /= 4.0 A. What are the magnitude (in t) and diroction of the magnetic field ot the center of the loop? noliiill a, 33.1 into the page كلية العلوo O b. 24.9 into the page Oc. 10.3 into the page Cd. 33.1 out at the page Scanned with CamScanner
a. A straight wire carries a current perpendicular to β . Calculate for the magnitude of the force permeter. b. What is the magnitude of the force per meter if the angle between wire and β is 450? Current = 8.40 ; Magnetic field = 0.90 T
A doubly ionized molecule (i.e., a molecule lacking two electrons) moving in a magnetic field experiences a magnetic force of 6.41 x 10-16 N as it moves at 223 m/s at 67.9° to the direction of the field. Find the magnitude of the magnetic field. T