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A charge q is placed at (1,2,1) and anot...

A charge q is placed at (1,2,1) and another charge -q is placed at (0,1,0) such that they form an electric dipole . There exists a uniform electric field `vecE =(2hati +3hatj).` the torque experienced by the dipole is -

A

`q"("-3hati+2hatj+hatk")"`

B

`q"("hati+hatj+hatk")"`

C

`q"("3hati+hatj+hatk")"`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A

`vec(r12)=vec(r2) -vec(r1)`
`vectau = vecPxxvecE`
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