Obtain the expression for the torque `vec(tau)` experienced by an electric dipole of dipole moment `vec(p)` in a uniform electric field , `vec(E )`

Explanation

To derive the expression for the torque \(\vec{\tau}\) experienced by an electric dipole with dipole moment \(\vec{p}\) in a uniform electric field \(\vec{E}\), we can follow these steps:

### Step 1: Define the Electric Dipole
An electric dipole consists of two equal and opposite charges, \(+Q\) and \(-Q\), separated by a distance \(2l\). The dipole moment \(\vec{p}\) is defined as:
\[ \vec{p} = Q \cdot (2l) \cdot \hat{n} \]
where \(\hat{n}\) is a unit vector pointing from the negative charge to the positive charge.
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