Question:
A wire of length l and resistance 100 ohm is divided into 10 equal parts. The first 5 parts are connected in series
while the next 5 parts are connected in parallel. The two combinations are again connected in series. The resistance of this final combination is: 
1) 26 ohm
2) 52 ohm
3) 55 ohm
4) 60 ohm                           NEET -2024
Solution:                
A wire of length l and resistance 100 ohm is divided into 10 equal parts. The first 5 parts are connected in series while the next 5 parts are connected in parallel. The two combinations are again connected in series. The resistance of this final combination is:

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