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प्रश्न
V = IRTwo resistances X and Y are connected turn by turn : (i) in parallel, and (ii) series. In which case the resultant resistance will be less than either of the individual resistances?R = R1+ R2+ R3
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उत्तर
When two resistors, X and Y are connected in parallel combination, the total resistance will be less than the individual resistance. The total resistance in a parallel arrangement is given by:
`1/R=1/R_1+1/R_2`
where as in a series combination, the total resistance is more than the individual resistances. The total resistance in a series combination is given by:
R = R1+ R2
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