Two long straight wires are parallel and 12 cm apart.They are to carry equal currents such that themagnetic field at a point halfway between them hasmagnitude 430 μT. (a) Should the currents be in thesame or opposite directions? (b) How much current isneeded?(a)opposite(b) Number i6.5UnitsA ✰

A.) Current should be in Opposite direction. B.)

Answered: Two long straight wires are parallel…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 48A

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Is B constant in magnitude for points that lie on a magnetic field line?
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MYMIVIVH uns w pui SIVIN IN WEHE saw piwa ISMIMIN 29. An electron is travelling at 100 km/s parallel to a long straight horizontal conductor a distance of 3.00 cm from the conductor. A current of 12.0 A runs through the wire as the electron travels parallel to it, in the same direction as the electron's velocity. Find the strength of the external electric field that will prevent the elec- tron from deviating from its original path. Express your answer in V/m.
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Two horizontally displaced long parallel wires have currents flowing as shown. The distance between the wires is d = 0.0350m. The current IA in wire A is 8.50 (A), OUT. The current IB in wire B is 9.50 (A), IN. Note: µo = 1.257x10-6 T·m/A= 4π x10-7 T·m/A. For parts (a), (b) and (c) see figure 1; for part (d), figure 2.(a) What is the magnitude and direction of the magnetic field due to wire A at midpoint P of the perpendicular segment between the wires?(b) What is the magnitude and direction of the magnetic field due to wire B at midpoint P of the perpendicular segment between the wires?(c) What is the magnitude and direction of the net magnetic field due to both wires at midpoint P of the segment?(d) Now turn your attention to figure 2. What is the magnitude and direction of the force on a 1.00 m section of wire B due to the field from wire A? Indicate the direction of the force on wire B with an arrow whose tail is at wire B. SHOW WORK INCLUDING GRAPHICAL ELEMENTS YOU DRAW IN…
A magnet has a coercivity of 1x10^3 A ⁄ m. What current should be delivered through a solenoid with a length of 5 cm and a number of turns of 100 such that a magnet put in it is demagnetized? Round to two decimal places. Topic: Electromagnetic Induction
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B6
A 2.4 m segment of wire supplying current to the motor of a submerged submarine carries 950 A and feels a 3.9 N repulsive force from a parallel wire 5.00 cm away. What is the magnitude of the current in the other wire in A?

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