Two opposite and equal charges of magnitude 4 × 10 –8 coulomb each when placed 2 × 10 –2 cm apart form a dipole. If this dipole is placed in an external electric field of 4 × 10 8 N/C, the value of maximum torque and the work required in rotating it through 180º from its initial orientation which is along electric field will be : (Assume rotation of dipole about an axis passing through center of the dipole):
Text Solution
Verified by ExpertsThe correct answer is:
D
Dipole moment 
Maximum torque 
Work done in rotating through 
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