Question

Calculate the combined resistance in each case
1) 500 ohm and 1 ohm in series,
2) two 2 ohm resistors in parallel,
3) two 4 ohm in parallel connected in series with a 3 ohm resistor.

Answer 1

1) 500+1=501
2)2×2/2+2=4/4=1
3)(4×4/4+4) + 3 =2+3=5

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Answer 2

I hope it helps

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