An electric dipole is placed at an angle...

An electric dipole is placed at an angle of `30^(@)` with an electric field intensity `2xx10^(5)N//C`. It experiences a torque equal to `4Nm`. The charge on the dipole, if the dipole length is `2 cm`, is

8 mC

2 mC

5 mC

`7 muC`

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