Questions
Two resistances are joined in parallel whose resultant is ohm. One of the resistance wires is broken and the effective resistance becomes Then the resistance in ohm of the wire that got broken was
detailed solution
Correct option is C
If resistances are R1 and R2 then R1R2R1+R2 = 68 …..(i)Suppose R2 is broken then R1 = 2 Ω …..(ii)On solving equations (i) and (ii), we get R2 = 6/5 ΩTalk to our academic expert!
Similar Questions
A uniform wire of resistance 36 ohm is bent in the form of a circle as shown in fig The effective resistance across the points A and B is
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