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Physics, 20.09.2019 05:20 Meirna

An electret is similar to a magnet, but rather than being permanently magnetized, it has a permanent electric dipole moment. suppose a small electret with electric dipole moment 1.0 × 10−7 cm is 25 cm from a small ball charged to + 55 nc, with the ball on the axis of the electric dipole. what is the magnitude of the electric force on the ball?

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