R2=100 ohm , R3=150ohm , R4=220ohm , R6=330ohm
I calculate equivalent resistance like this
150*100/150+100=60 ohm
220*330/220+330=132 ohm
60+132=192 ohm
can you tell me whether it true or wrong?
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\$\begingroup\$ R3 is not parallel with R2. R3 is in parallel with R2+(R4||R6) \$\endgroup\$– G36Commented Feb 17, 2018 at 12:25
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1\$\begingroup\$ As seen from source terminals? In that case it'd be R3 || (R2 + (R4 || R6)) \$\endgroup\$– DeepCommented Feb 17, 2018 at 12:29
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2 Answers
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This only looks difficult because of the layout. If you would take the time to redraw it you could see that this is very simple to solve.
simulate this circuit – Schematic created using CircuitLab
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R4 and R6 are in paralell, so calculate it first. Then, do the series with R2, and finally, the paralell with R3. So:
1/Ra = 1/R4 + 1/R6
Ra = (R4*R6)/(R4 + R6)
Rb = Ra + R2
Rtotal = (Rb*R3)/(Rb + R3)
