7. When a positive charge is released and moves along an electric field line, it

Question

7. When a positive charge is released and moves along an electric field line, it moves to a position of a. lower potential and lower potential energy b. lower potential and higher potential energy c. higher potential and kower potential cnergy d higher potential and higher potenial energy c. greater magnitude of the clectric ficld A charge is placed on a spherical conductor of radius n. This sphere is then connected to a distant sphere of radius r (not equal to ri) by a conducting wire. After the charges on the spheres are in equilibrium, a? the electric fields at the surfaces of the two spheres are equal b. the amount of charge on each sphere is 4/2. c. both spheres are at the same potential d. a n dhe a 191 the potentials are in the ratio 9. Which of the following represents the equipotential lines ofa dipole? a. ? b. C.

Explanation / Answer

7) The charge moves in the direction of electric field and potential decreases in the direction of field. So it moves to a lower potential and lower potential energy. Correct option - a.

8) When two conductors are connected they acquire same potential. So, correct option is - c.

9) Equipotential lines are perpendicular to the electric field lines. So correct option would be - e.

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