An electric dipole with dipole moment 4×10-9cm is aligned at 30° with the direction of a

uniform electric field of magnitude 5×104N/C. Calculate the magnitude of torque acting on the

dipole?

### Asked by krishnamm7000 | 25th Jun, 2021, 07:30: AM

Expert Answer:

### Torque τ acting on dipole p in electric field of intensity E is given as ,
where θ is angle between directions of dipole moment and electric field .
τ = 4 × 10^{-9} × 5 × 10^{4} × 0.5 = 10^{-4} N m

^{-9}× 5 × 10

^{4}× 0.5 = 10

^{-4}N m

### Answered by Thiyagarajan K | 25th Jun, 2021, 08:27: AM

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