Physics-Electric Dipole
NEET Physics Electric Dipole MCQ Question
Type: MCQ-numerical-Medium-Class 12
An electric dipole consists of charges +q and -q separated by a distance of 2a. What is the magnitude of the electric dipole moment if q = 5 × 10^-8 C and a = 3 cm?
A
3 × 10^-8 C·m
B
6 × 10^-8 C·m
C
5 × 10^-8 C·m
D
9 × 10^-8 C·m
Correct Answer
Option B
Detailed Explanation
The electric dipole moment p is calculated using the formula p = 2qa. Given q = 5 × 10^-8 C and a = 0.03 m, p = 2 × 5 × 10^-8 C × 0.03 m = 6 × 10^-8 C·m.
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