Current Electricity and Electrical InstrumentHard

Question

In the given black box unknown emf sources and unknown resistance are connected by an unknown method such that (i) when terminals of 10 ohm resistances are connected to box then 1 ampere correct flows and (ii) when 18 ohm resistances are connected then 0.6 A current flows then for what value of resistance does 0.1 A current flow ?

Options

A.118 Ω
B.98 Ω
C.18 Ω
D.58 Ω

Solution

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