Question

The resistance of the wire is 121 ohm. It is divided into 'n' equal parts and they are connected parallel, then effective resistance is 1 ohm. The value of 'n' is:

Answer 1

n=11 should be the answer

Answer 2

Answer:

Concept:

A wire's resistance is proportional to its length whereas its cross-sectional area is inversely proportionate. Resistance is also affected by the conductor's substance. See also resistance. When a conductor's or circuit element's temperature rises, so does the resistance of that circuit or circuit element.

Given:

The resistance of the wire is 121 ohm. When it is divided into 'n' equal portions and connected in a parallel configuration, the active defense is 1 ohm.

Find:

Find The value of 'n' is:

Answer:

R=121 Ω

when it divide into n parts

Resistance of each part $=\frac{121(r)}{n}$

                                   $req=\frac{r}{n}$

                                          $=\frac{121}{n.n}$

                                          $=\frac{121}{n^{2} }$

                                     $req = 1$

                                      $\frac{121}{n} =1$

                                       $n^2 = 121$

                                         $n = 11$

Therefore the value of 'n' is: $11$

When electrons pass through a conductors, such as a metal wire, an electric current occurs. The ions in the metal can clash with the travelling electrons. This produces resistance and makes it difficult for the electricity to flow.

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