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Electric field can be used to pull electron out of the metals. To remove an electron from tungsten,electric field must do 4.5 eV if work .supose the distance over which electric field act is 3.4nm.calculate the minimum force that the field must exert on the electron bieng removed.

Electric field can be used to pull  electron out of the metals. To remove an electron from tungsten,electric field must do 4.5 eV if work .supose the distance over which electric  field act is 3.4nm.calculate the minimum force that the field must exert on the electron bieng removed.

Grade:12th pass

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