Question

4 resistance of 16 ohms each are connected in parallel .four such combination are connected in series what is the total resistance

Answer 1

For parallel combination of resistances,suppose the resultant resistance=R

then 1/R=1/16+1/16+1/16+1/16  (Since for parallel combination  1/R=1/R1+1/R2+....)

1/R=4/16

R=4 Ohm

Now four such combinations are connected in series,

So for series combination the resultant resistance R'=4+4+4+4=16 Ohm  (Since for series combination  R=R1+R2+...)

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