You conduct two experiments to test the magnitude and direction of an electric field. The experiment is conducted by placing charged metal spheres in the electric field and measuring magnitude and direction of the electric force exerted on the spheres.

(a). A sphere with a charge of +23.9 µC is placed in an electric field.

The measured magnitude and direction of the electric force is 40.5 µN, due east. The electric field has what magnitude and direction?

magnitude	______ N/C
direction	Choose - due east / due north/ due west/ due south

(b). The second sphere has a charge of ?13.8 µC and is placed in an electric field.

You find that the electric force on the sphere is 22.0 µN, due west. The electric field has what magnitude and direction?

magnitude	______ N/C
direction	Choose - due east / due north/ due west/ due south

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