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A sample of HCI gas is placed in a unifo...

A sample of HCI gas is placed in a uniform electric field of magnitude `3xx10^(4)N.C^(-1)` . The dipole moment of each HCI molecule is `3.4xx10^(-39)` Cm. Calculate the maximum torque experienced each HCI molecule.

Text Solution

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The maximum torque experienced by the dipole is when it is aligned perpendicular to the applied field.
`tau_("max")=pE sin 90^@ =3.4 xx10^(-30) xx 3xx 10^4 Nm`
`tau_("max")=10.2 xx 10^(-26)Nm`
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