#### Problem Statement: Electromagnetics

**Work Problem Solving**

Two charges +3.2 ร 10^19 C and โ3.2 ร 10^-19 C separated by 2r = 2.4 A forms an electric dipole. It is placed in a uniform electric field of 4 ร 10^5 V/m. The work done by electric force to rotate the electric dipole from the equilibrium position to 180ยฐ is

A. -6 ร 10^-23 J

B. 6 ร 10^-23 J

C. 3 ร 10^-23 J

D. Zero

#### Problem Answer:

The work done by electric force to rotate the electric dipole from the equilibrium position to 180ยฐ is equal to **-6 x 10^-23 Joules**.

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