1.

The torque acting on a dipole of moment \[\overrightarrow{P}\] in an electric field \[\overrightarrow{E}\] is       [MP PMT 1994; CPMT 2001]

A.                    \[\overrightarrow{P}\cdot \overrightarrow{E}\]
B.                                      \[\overrightarrow{P}\times \overrightarrow{E}\]
C.                    Zero
D.                                      \[\overrightarrow{E}\times \overrightarrow{P}\]
Answer» C.                    Zero


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