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A wire has a resistance of 6 . It is cut into two parts and both half values are connected in parallel. The new resistance is

a)

3

b)

6

c)

12

d)

1.5



Question ID - 151362 | SaraNextGen Top Answer

A wire has a resistance of 6 . It is cut into two parts and both half values are connected in parallel. The new resistance is

a)

3

b)

6

c)

12

d)

1.5

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

Resistance of original wire is

 ,being the specific resistance of wire. When the wire is cut in two equal halves then resistance becomes

Thus, the net resistance of parallel combination of two halves is given by

127 votes


127