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18.There is an electic field E in x direction. If wirk done in moving a charge 0.2C through a distance of 2m along a line making an angle of 60 degree with x axis is 4J. What is the value of E? |
| Answer» 18.There is an electic field E in x direction. If wirk done in moving a charge 0.2C through a distance of 2m along a line making an angle of 60 degree with x axis is 4J. What is the value of E? | |