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CBSE Class 12-science Answered

An electric dipole of moment 4×10-8 cm is placed in uniform electric feild of 3×10 4 N/C. The moment vector subtends an angle 30degree with electric field. Find the torque on the dipole
Asked by Arpansingla3 | 03 Jul, 2018, 08:00: PM
answered-by-expert Expert Answer
electric-dipole moment is 4×10-8 cm ?????? I assume the unit is C-m (Coulomb-metre).
 
Torque begin mathsize 12px style equals bold space bold p with bold rightwards arrow on top bold space bold cross times bold E with bold rightwards arrow on top space equals space p cross times E cross times sin theta space equals space 4 cross times 10 to the power of negative 8 end exponent cross times 3 cross times 10 to the power of 4 cross times 1 half space equals space 6 cross times 10 to the power of negative 4 end exponent space N m end style
Answered by Thiyagarajan K | 03 Jul, 2018, 08:41: PM
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