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## Homework Statement

Im aware that you can find the current passing through each resistor in a parallel circuit by using the equation I=v/r but for homework i was asked how to find the current by using the ratios between each resistor.

eg.

---5ohms---- Resistor 1

- 20ohm - Resistor 2

- 10ohms - Resistor 3

----| - |-----

I=20AMPS

If only resistor 1 and 2 exists i can do it by dividing 5 by 5+20 and dividing

20 by 2+20. Inverting the results so 5/25 is for resistor 2 and vice versa then multiplying the results by 20amps. This gives the amps passing through each resistor.

I've no idea how to do it if there is 3 or more resistors.