Two resistances, one of 30 Ω and another of unknown value, are connec – McqOptions

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1.	Two resistances, one of 30 Ω and another of unknown value, are connected in parallel. The total power dissipated in the circuit is 450 W when the applied voltage is 90 V. The unknown resistance is
A.	45 Ω
B.	35 Ω
C.	30 Ω
D.	20 Ω
Answer» B. 35 Ω

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