An electric dipole of length 10cm having charges 6×10−3C is placed at 60∘ with respect to a uniform electric field. If it experiences a torque of 3√3N-m, then the magnitude of electric field is
A
1×104N/C
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B
2×104N/C
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C
3×104N/C
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D
4×104N/C
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Solution
The correct option is A1×104N/C Given: 2l=10cm=0.1m;q=±6×10−3C θ=60∘;τ=3√3N-m
Torque acting on dipole placed in electric field is given by