7 A square aluminium rod is Im long and 5mm on edge What

Last updated: 6/4/2023

7 A square aluminium rod is Im long and 5mm on edge What must be the radius of another aluminium ro length is I m and which has the same resistance as the previous rod 1 5 mm V sonensfil 2 4 2 mm T ni nwor3 2 8 mm olavas 4 1 4 mm 13 An electric current of 5A is passing through a circuit containing three wires arranged in parallel If the leng radius of the wires are in the ratio 2 3 4 and 3 4 5 then the ratio of current passing through wires w 4 54 64 75 1 3 6 8 2 4 9 16 3 9 16 25 14 A current of 6A enters one corner P of an equilateral triangle PQR having 3 wires of resistances 20 ead leaves by the corner R Then the current I and I are 8 ww 6A AP DOBRETO