Recent content by cemx

thank you so much brother I am really sure about it.My teacher gave me 100 points.Thank you again

I understand the second question.İt's different because every material have different R,r,l,A Is it correct?

ok.I thought again and I understand the resistivity does not change.But I don't know any information about second question.I have looked wiki but I can't find any knowledge.Do you Help me

I need your help to finish my homework.I have only two questions 1-If a diameter of a wire is doubled,what happens to its electicial resistivity? 2-Why is different the resistivity of materials? Thanks