An electric dipole consisting of two opposite charges of 2×10−6C separated by a distance of 3cm is placed in an electric field of 2×105N/C. The maximum torque on the dipole will be
A
12×10–1Nm
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B
12×10–3Nm
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C
24×10–1Nm
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D
24×10–3Nm
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Solution
The correct option is B12×10–3Nm Maximum torque = pE =2×10–6×3×10–2×2×105=12×10–3Nm