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Physics / Physics with MasteringPhysics 4 / Chapter 22 / Problem 92GP

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

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IP Consider the physical system shown in Figure 22–49,

Chapter 22, Problem 92GP

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QUESTION:

Problem 92GP

IP Consider the physical system shown in Figure 22–49, which consists of two current-carrying wires each with a length of 71 cm. (a) If the net magnetic field at the point A is out of the page, is the force between the wires attractive or repulsive? Explain. (b) Calculate the magnitude of the force exerted by each wire on the other wire, given that the magnetic field at point A is out of the page with a magnitude of 2.1 × 1.0−6 T.

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QUESTION:

Problem 92GP

IP Consider the physical system shown in Figure 22–49, which consists of two current-carrying wires each with a length of 71 cm. (a) If the net magnetic field at the point A is out of the page, is the force between the wires attractive or repulsive? Explain. (b) Calculate the magnitude of the force exerted by each wire on the other wire, given that the magnetic field at point A is out of the page with a magnitude of 2.1 × 1.0−6 T.

ANSWER:

Step 1 of 3

a)

Here, we have to find whether the force between the wires is attractive or repulsive.

Given that,

$r=71\ cm=0.71\ m$ .

${I}_{1}={I}_{2}=3.7\ A$ .

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