A copper wire of resistance R is cut into ten parts of equal length. Two pieces each are joined in series and then five such combinations are joined in parallel. The new combination will have a resistance
A
R
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Hence every new piece will have a resistance 
If two pieces are connected in series, then their resistance 
If 5 such combinations are joined in parallel, then net resistance 
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