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An electric dipole made up of a positive...

An electric dipole made up of a positive and negative charge, each of 1 mC and placed at a distance 2 cm apart . If the dipole is placed in an electric field of `10^(5)`N/C, then calculate the minimum torque which the field can exert can exert on the dipole , if it is turn from a positive `theta=0^(@)"to "theta=180^(@)`.

A

`2xx10^(-3)` N-m

B

`3xx10^(-3)` N-m

C

`4xx10^(-3)` N-m

D

`2.8xx10^(-3)` N-m

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