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3 marksElectric Fields

CSEC Physics · 1997 · Paper 2 · Question 1(a)

Figure 1 shows a small, positively charged object near a small, negatively charged object.

Indicate, with a short arrow, labelled F, the direction of the force exerted on the negatively charged object, and draw the electric field in the region of the two charges using arrows to show its direction.

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Other parts of this question

  1. 1(b)(i)On Figure 2, indicate with an arrow the direction of the force exerted by the magnetic field on this conductor.[1 mark]
  2. 1(b)(ii)How could the force on this conductor be increased?[2 marks]
  3. 1(b)(iii)Draw a labelled diagram to show how you could produce a uniform magnetic field like the one on page 2.[2 marks]
  4. 1(c)(i)Explain why the coil begins to rotate when a current is passed through it.[3 marks]
  5. 1(c)(ii)What extra device is needed to ensure that the coil continues to rotate?[1 mark]
  6. 1(d)(i)Draw the magnetic field near to the conductor, using arrows to indicate the direction of the field.[2 marks]
  7. 1(d)(ii)Another wire, parallel to the first, carrying current in the SAME direction, is positioned at Point P. On Figure 4, show the direction of the force on this…[2 marks]

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