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In a certain region of space, electric f...

In a certain region of space, electric field is along the z-direction throughout. The magnitude of electric field is however not constant, but increases uniformly along the positive z-direction at the rate of `10^(5)NC^(-1)m^(-1)`. The force experienced by the system having a total dipole moment equal to `10^(-7)`C m in the negative z- direction is

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The correct Answer is:
Force `=10^(-2)`, Torque = 0
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