Find the current and voltage across r2 from the circuit
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Answer:To find current across each resistor we use Ohm's law I=V/R, then I1=V1/R1=12/4=3A and I2=V2/R2=12/3=4A. Total current (not asked) in a circuit would be I1+I2=7A. To check if our total current is right we can find total resistance and use Ohm's law on the whole circuit.
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