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+2 votes
13.5k views
in Physics by (51.7k points)
(a) 1/5 Ω
(b) 1/25 Ω
(c) 1/10 Ω
(d) 25 Ω

2 Answers

+1 vote
by (12.7k points)
selected by
 
Best answer

Minimum resistance is observed when they are connected in parallel (you can take it as a thumb rule that the resistance of a group of resistors connected in parallel will be less then the minimum resistance present in the group)

thus net resistance 1/R = 1/R1 + 1/R2 + .... and so it can be calculated to be 1/25

0 votes
by (266k points)
(b) 1/25 Ω is the minimum resistance

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