engineering recuitment MAHATRANSCO AE Electrical Mock Test Network Theory Network Elements Circuit Elements
A lead wire and an iron wire are connected in parallel. Their respective specific resistances are in the ratio 40 ∶ 20. The former carries 80% more current than the latter, and the latter is 45% longer than the former. Determine the ratio of their cross-sectional areas latter to former.
1
0.3
2
0.75
3
0.6
4
0.5
5
0.4