Question

Five 10 ohm resistance are connected in parallel. The resultant resistance is.............

Answer 1

Resistance parallel = 1/10+1/10+1/10+1/10+1/10

                                = 5/10

                                = 1/2

                                = 2 ohms (in the last step the value becomes reciprocal as                                             it is the rule for finding resistance in parallel)

Answer 2

1/R eff=1/R1 +1/R2 +1/R3 +1/R4 +1/R5
1/R eff=1/10+1/10+1/10+1/10+1/10
=5/10=1/2

So R eff=2 ohm



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