Q117 / 150 · MHT CET 2025 (26 Apr Shift 1) · Physics
Out of the following statements which is NOT the characteristics of electric lines of force?
- AElectric lines of force originate from a positively charged object and end on negatively charged object.
- BThe electric lines of force do not intersect each other.
- Correct answerCThe electric lines of force pass through the conductor.
- DThe electric lines of force are crowded in a region where electric intensity is large.
Solution
Properties of electric lines of force:
Electric lines of force originate from positive charges and terminate on negative charges, never forming closed loops. No two lines intersect, as this would imply multiple electric field directions at a single point, which is physically impossible. The tangent to any point on a line indicates the electric field direction at that location.
Line density corresponds to field strength: denser regions indicate stronger fields, sparser regions weaker fields. In electrostatic equilibrium, lines do not pass through conductors but instead terminate perpendicularly to their surfaces, reflecting the zero field inside conductors.
Evaluating the options:
A: Correct—lines originate from positive and terminate on negative charges.
B: Correct—lines never intersect.
C: Incorrect—lines do not pass through conductors in electrostatic equilibrium.
D: Correct—line density correlates with electric field intensity.
The non-characteristic property is option C.
Hence, the correct answer is option: 'C'.