In the figure, two concentric circular loops of wire carrying current in the same direction lie in the same plane. Loop 1 has radius 1.30 cm and carries 4.40 mA. Loop 2 has radius 2.70 cm and carries 6.40 mA. Loop 2 is to be rotated about a diameter while the net magnetic field B set up by the two loops at their common center is measured. Through what angle must loop 2 be rotated so that the magnitude of the net field is 100 nT? & Number i Units

In the figure, two concentric circular loops of wire carrying current in the same direction lie in the same plane. Loop 1 has radius 1.30 cm and carries 4.40 mA. Loop 2 has radius 2.70 cm and carries 6.40 mA. Loop 2 is to be rotated about a diameter while the net magnetic field B set up by the two loops at their common center is measured. Through what angle must loop 2 be rotated so that the magnitude of the net field is 100 nT? & Number i Units

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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Concept explainers

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.

Question

In the figure, two concentric circular loops of wire carrying current in the same direction lie in the same plane. Loop 1 has a radius of 1.30 cm and carries a current of 4.40 mA. Loop 2 has a radius of 2.70 cm and carries a current of 6.40 mA. Loop 2 is rotated about a diameter while the net magnetic field $ \mathbf{B} $ set up by the two loops at their common center is measured. Through what angle must loop 2 be rotated so that the magnitude of the net field is 100 nT?

The image shows two concentric circles labeled as Loop 1 and Loop 2, with a common center. An arrow indicates the direction in which the loops are rotated.

Below the image, there is a text box to enter a number and a drop-down menu for selecting units.

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Step 1: Formula for the magnetic field produced by a current-carrying loop at its center

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Step 2: Calculation for magnitude magnetic field due to each loop

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Step 3: Calculation for angle of rotation

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