Question
Physics Question on Electric Field
The expression for torque 'τ' experienced by an electric dipole of dipole moment 'P' in an external uniform electric field 'E' is given by :
A
τ→=P→.E→
B
τ→=P→/E→
C
τ→=E→/P→
D
τ→=P→×E→
Answer
τ→=P→×E→
Explanation
Solution
The correct answer is (D): τ→=P→×E→