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QNEET-2016-Ph-1183: NEET 2016 Physics - Class 12 NEET-2016-Ph-1183 Solution: An electric dipole is placed at an angle of $30^ $ with an…

An electric dipole is placed at an angle of

30^\circ

with an electric field intensity

2 \times 10^5\ \text{N C}^{-1}

. It experiences a torque equal to 4 N m. The charge on the dipole if the dipole length is 2 cm is 8 mC 2 mC 5 mC 7

\mu C

Step-by-Step Verified Solution

Torque is given by _ = pE sin _ _ = pE sin _ = q l E sin_ _ q = _ / l E sin_ = 4/(2 _ 10 -2 _ 0.5 _ 2 _ 10 5 ) = 2 mC