The diagram below is a fragment of a circuit. A 5-A current is flowing through R1=10 Ω; other resistors are R2=10 Ω, R3=30 Ω, and R4=35 Ω. Find the equivalent resistance of this fragment of the circuit: Req =  Ω. Find the current flowing through the R2 resistor: I2=  A. Find the power dissipated on the R2 resistor: P2=  W

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