What is the highest resistance that can secured by the combination of four coils of resistances 4ohm (each coil)
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Given resistances R1 =4 Ω, R2=8 Ω, R3=12Ω, and R4=24Ω. ∴ 2 Ω is the lowest total resistance.
The highest resistance is when the resistances are connected in series. Hence, the highest resistance is 48 Ω.
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