(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I need to find the total impedance in a circuit that has:

j60 ohms, 30 ohms, -j60 ohms and 20 ohms in parallel

2. Relevant equations

Z_{total}=1/(Z_{1}+ Z^{2}+ Z_{n})

3. The attempt at a solution

I've tried doing this, but what I think is the -j60 and the j60 should cancel therefore leaving only the 30 ohms and 20 ohms in parallel, which would equal 1/50, but the answer says it is 12 ohms.

Attached is an image of the circuit and answer.

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# Homework Help: Finding the parallel impedance in a circuit

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