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Two semicircles shown in Fig. have radii...

Two semicircles shown in Fig. have radii a and b. Calculate the net magnetic field (magnitude and direction) that the current in the wires produces at point P.

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`B=(B_a-B_b)=1/2((mu_0I)/2) (1/a-1/b)`
`B=(mu_0I)/(4a)(1-a/b)`, out of the page.
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CENGAGE PHYSICS-SOURCES OF MAGNETIC FIELD-Concept Exercise 2.1
  1. For the arrangement shown in Fig. determine the magnetic field at cent...

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  2. Four long, parallel conductors carry equal currents of 5.0A. The direc...

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  3. A long, vertical wire carrying a current of 10A in the upward directio...

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  4. Figure shows a long wire bent at the middle to form a right angle. Sho...

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  5. In Fig. two long parallel wires (seen end-on) that are a distance R ap...

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  6. Figure shows a square loop of edge a made of a uniform wire. A current...

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  7. Let two long parallel wires, a distance d apart, carry equal currents ...

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  8. A long, circular pipe, with an outside radius R, carries a (uniformly ...

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  9. Shown in Fig. is an end-on view of three long, straight, parallel cond...

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  10. In Fig, find the magnetic field at point P.

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  11. Current I flows through a long conducting wire bent at right angle as ...

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  12. A wire is bent into the shape shown in fig and the magnetic field is m...

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  13. Charge is sprayed onto a large non-conducting belt above the left-hand...

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  14. An infinitely long, noc-conducting cylidner of radius R lies along the...

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  15. In Fig, find the magnetic field at point P. The loop is lying in x-y p...

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  16. Two long, straight wires, one above the other, are separated by a dist...

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  17. A long, straight wire lies along the y-axis and carries a current I=8A...

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  18. Calculate the magnitude of the magnetic field at point P as shown in F...

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  19. Two semicircles shown in Fig. have radii a and b. Calculate the net ma...

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  20. A +6muC point charge is moving at a constant velocity of 8xx10^6 ms^-1...

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