NEET2023Physics-Electrostatics
NEET 2023 Physics Electric Dipole MCQ Question
Type: MCQ-numerical-Medium-Class 12
An electric dipole is placed at an angle of 30° with an electric field of intensity 2×10⁵ N C⁻¹. It experiences a torque equal to 4 N m. Calculate the magnitude of charge on the dipole, if the dipole length is 2 cm.
A
6 mC
B
4 mC
C
2 mC
D
8 mC
Correct Answer
Option B
Detailed Explanation
Torque τ = pE sin θ, where p = qd. Given τ = 4 Nm, E = 2×10⁵ N/C, θ = 30°, and d = 0.02 m, we solve for q: q = τ / (E * d * sin θ) = 4 / (2×10⁵ * 0.02 * 0.5) = 4 mC.
Found an issue with this question?
Related Questions
More from 2023
Which of the following statements are NOT correct? A. Hydrogen is used to reduce heavy metal oxides to metals. B. Heavy water is used to study react...
HydrogenChemistry
Consider the following compounds/species: The number of compounds/species which obey Huckel’s rule is ______.
Organic ChemistryChemistry
Match List I with List II.
Human PhysiologyZoology