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An electric current 5A is passed through a circuit containing three wires arrange in parallel.If the lenghts and radii of the wire are in the ratio 2:3:4 and 3:4:5:, then find th ratio os currents passing through wires.

An electric current 5A is passed through a circuit containing three wires arrange in parallel.If the lenghts and radii of the wire are in the ratio 2:3:4 and 3:4:5:, then find th ratio os currents passing through wires.

Grade:12

1 Answers

vinnu bhardwaj
8 Points
14 years ago

hey

first of all find the ratio of the resistances in the three wires using the formula R=(row) * L/A .

Then as in parallel potential difference across the three wires is same. So find the ratio of current by  using the formula V=I*R

Simple

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