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The wire carrying 375 A to the motor of a commuter train feels an attractive force per unit...

Question:

The wire carrying 375 A to the motor of a commuter train feels an attractive force per unit length of 3.20 x {eq}10^{-3} {/eq} N/m due to a parallel wire carrying 5.00 A to a headlight.

(a) How far apart are the wires?

(b) Are the currents in the same direction?

Electric Field

The area around the charged object or the current-carrying object in which the effect of the electrical force can be experienced by another object that is located nearby is known as the electric field. The effect of the electric field decreases with the increase in the distance from the charged object.

Answer and Explanation:

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Given Data:

  • The current in the wire is: {eq}I = 375\;{\rm{A}} {/eq}
  • The force on the unit length is: {eq}F = 3.20 \times {10^{ -...

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Electric Fields Practice Problems

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Chapter 17 / Lesson 8
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