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## Homework Statement

Having some Difficulty in starting the second question on this sheet. i have managed to find examples and worked my way through the first question, but unfortunately my tutor has decided to move onto pastures new, and we have an assignment to complete but no tutor which has left me in a slight pickle!

The main problem at the moment is reducing the circuit into a format where i can understand and work with it.

im assuming the switch is redundant as it states it is closed, but from there onwards, im not sure which are in parallel and which are in series (as im mechanically biased = clueless)

## Homework Equations

i have all the equations necessary and i have worked out equivalent resistances etc before, but it is literally just knowing the order of things to do with this and what each are doing.

## The Attempt at a Solution

My first attempt was to close the switch, assume that the 180 and 270 ohm resistors are in series, giving me 450ohm in parallel with the 90. and then having the equivalent (75) in series with the 135. giving me a 200ohm resistor, 6A and the load.

any help would be much appreciated as im a bit aimless at the minute without a tutor to point me in the right direction.

thanks very much.