Questions
Consider a dipole with dipole moment 4.8 x 10-30 cm. Let a point P lies 4.1 x 10-9 m away from centre of dipole. Match the values of potentials given in column-II with column-I and mark the correct choice from the given codes.
| Column-I | Column-II | ||
| i. | Point is along axis of dipole nearer to positive-charge: | p. | -1.8 X 10-3 V |
| ii. | Point is 45° above the axis but nearer to positive charge. | q. | 1.8 X 10-3 V |
| iii. | Point is 45° above the axis but nearer to negative charge. | r. | 2.6x 10-3 V |
Codes:
detailed solution
Correct option is C
(i) V=9×109×4.8×10-30×cos0°4.1×10-92=2.6×10-3 V (ii) V=kpcosθr2=1.8×10-3 V (iii) V=14πε0·pcosθr2 =9×109×4.8×10-30×cos135°4.1×10-92 =-1.8×10-3 VTalk to our academic expert!
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