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Question

(B) The electric dipole moment $p$ is given by $p = q 	imes (2a)$,where $q = 2 	imes 10^{-6} \, C$ and the separation distance $2a = 3 \, cm = 3 	i

Vedclass · Accepted Answer

$12 	imes 10^{-3} \, N \cdot m$

Vedclass · Answer

(B) The electric dipole moment $p$ is given by $p = q 	imes (2a)$,where $q = 2 	imes 10^{-6} \, C$ and the separation distance $2a = 3 \, cm = 3 	imes 10^{-2} \, m$.$p = (2 	imes 10^{-6} \, C) 	imes (3 	imes 10^{-2} \, m) = 6 	imes 10^{-8} \, C \cdot m$.The maximum torque $	au_{max}$ on a dipole in an electric field $E$ is given by $	au_{max} = pE$.Given $E = 2 	imes 10^5 \, N/C$.$	au_{max} = (6 	imes 10^{-8} \, C \cdot m) 	imes (2 	imes 10^5 \, N/C) = 12 	imes 10^{-3} \, N \cdot m$.

An electric dipole consisting of two opposite charges of $2 \times 10^{-6} \, C$ each,separated by a distance of $3 \, cm$,is placed in an electric field of $2 \times 10^5 \, N/C$. The maximum torque on the dipole will be:

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