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Q.10) Three resistors of resistances 20 ohm, 40 ohm and 60 ohm are connected in parallel.Find the equivalent resistance of combination.

Answer»

in parallel resistance1/Req=1/R1+1/R2+1/R31/R=1/20+1/40+1/601/R=60/800+1/601/R=3600+800/800*60R=800*60/4400=10.9ohm



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