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Byju's Answer
Standard XII
Physics
Torque on a Dipole
In a certain ...
Question

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 105V/m. The force and the torque experienced by a system having a total dipole moment equal to 10−7C−m in the negative z-direction is given by respectively.

A
0.01,0
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B
0.02,0
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C
0,0.01
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D
None of the above
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Solution

The correct option is A 0.01,0
z direction positive rate =105V/m
torque = M × E
=105×10−7
=0.01cm

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Q. 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 105NC−1m−1. The force experienced by the system having a total dipole moment equal to 10−7C m in the negative z-direction is
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