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Please explain why #40 summer 2010 variant 12 the answer is choice D ![Unsure :unsure: :unsure:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I know that a cathode is negatively charged, but why is it hot?? Is it because there are many electrons there?http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_s10_qp_12.pdf
I know that a cathode is negatively charged, but why is it hot?? Is it because there are many electrons there?http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_s10_qp_12.pdf