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In Fig. 29-40 point P, is at distance R=...

In Fig. `29-40` point P, is at distance `R=24.0` cm on the perpendicular bisector of a straight wire of length `L=18.0`cm carrying current `i=58.2` mA. (Note that the wire is not long). What are the (a) magnitude and (b) direction of the magnetic field at `P`, due to i ? (c ) If R is increased, what happens to the magnitude of the field ?

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The correct Answer is:
(a) `1.70` nT; (b) out of figure; (c ) increasing R decreases B
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RESNICK AND HALLIDAY-MAGNETIC FIELDS DUE TO CURRENTS-Problems
  1. In Fig. 29-40 point P, is at distance R=24.0 cm on the perpendicular b...

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  2. In Fig 29-40 point P(2) is at perpendicular distance R=25.1 cm from o...

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  3. Four very long wires are arranged as shown in the figure, so that thei...

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  4. A conductor consists of a circular loop of radius R =10 cm and two str...

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  5. In Fig. 29-41 four long straight wires are perpendicular to the page, ...

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  6. In Fig. 29-41 four long straight wires are perpendicular to the page, ...

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  7. In Fig. 29-43, length a is 2.3 cm (short) and current i is 18 A. What ...

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  8. Two long parallel wires are separated by a distance of 2.50 cm. The fo...

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  9. Figure 29-45 a shows, in cross section, two long, parallel wires carry...

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  10. Figure 29-46 shows two closed paths wrapped around two conducting loop...

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  11. Figure 29-47 shows wire 1 in cross section, the wire is long and strai...

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  14. Figure shows a cross-section of a long ribbon of width omega that is c...

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  19. Two wire loop PQRSP formed by joining two semicircular wires of radii ...

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  20. A 470 - turn solenoid having a length of 25 cm and a diameter of 10 cm...

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