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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 1 - Electric Charges and Fields > A copper ball of density pc and diameter d is immersed in oil of density po. What charge should be present on the ball , so that it could be suspended in the oil, if a homogeneous electric field E is applied vertically upward?

A copper ball of density pc and diameter d is immersed in oil of density po. What charge should be present on the ball , so that it could be suspended in the oil, if a homogeneous electric field E is applied vertically upward?

A copper ball of density pc and diameter d is immersed in oil of density po. What charge should be present on the ball if a homogeneous electric field E is applied vertically upward? so that it could be suspended in the oil