The diagram shows the ~E field lines (with ar- rows) and the equipotential conto

Question

The diagram shows the ~E field lines (with ar- rows) and the equipotential contours for a certain charge con- figuration. Select T-True or F-False for the following state- ments. If the first is true and the rest false, enter TFFF.

i) A dipole with centre at C and free to rotate about C will

rotate such that the positive pole swings towards B .

ii) The equipotential and field lines shown could represent

those of a positive point charge.

iii) The E-Field at A is weaker than at B .

iv) An electron placed at A will move towards B .

26. [1pt] Assuming that these contours are those of a point

charge at the origin, calculate the value of the charge.

Explanation / Answer

1. A dipole with centre C and free to rotate about C will rotate such that the positive pole wswings toeards B -- FALSE

2. Positve lines are outward and -ve lines are inward so

false it is

3. as Electric field E = -V/d

so at A, E F is weaker than B True

4. electron at A , will move towards B , ture

so answers here are

FFTT

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