An electric dipole is placed at an angle of 30° with an electric field intensity 2×10^5 N C^(-1). It experiences a torque equal to 4 N m . The charge…

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An electric dipole is placed at an angle of 30° with an electric field intensity 2×10^5 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

MARKS Content Team · Accepted Answer

Correct answer: (B) 2 mC. Torque on the dipole in uniform electric field is given as τ=PEsin⁡θ ⇒τ=qlEsin⁡θ ⇒q=(τ)/(lEsin⁡θ)=4/(2×10^(-2)×0.5×2×10^5)=2×10^(-3) C Hence, charge on dipole is 2 mC.

An electric dipole is placed at an angle of $30 °$ with an electric field intensity $2 \times 10^{5} {N C}^{- 1}$ . It experiences a torque equal to $4 N m$ . The charge on the dipole, if the dipole length is $2 cm$ , is

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Relevant Questions

An electric dipole is placed at an angle of 30° with an electric field intensity 2×105 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

Solution

Relevant Questions

An electric dipole is placed at an angle of $30 °$ with an electric field intensity $2 \times 10^{5} {N C}^{- 1}$ . It experiences a torque equal to $4 N m$ . The charge on the dipole, if the dipole length is $2 cm$ , is