Current Electricity and Electrical InstrumentHard
Question
Three copper worse have their lengths in the ratio 5: 3: 1 and their masses are in the ratio 1: 3: 5. Their electrical resistance will be in the ratio
Options
A.5 : 3 : 1
B.1 : 3 : 5
C.125 : 15 : 1
D.1 : 15 : 125.
Solution
R = 
dρ, → same for all as the material is same for all.
⇒ R1 : R2 : R3 =
= 125 : 15 : 1
dρ, → same for all as the material is same for all.
⇒ R1 : R2 : R3 =
= 125 : 15 : 1Create a free account to view solution
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