A current

A current of 0.1 A flows in the branch with a resistance of 5 ohms. In the second branch, a current of 0.2 A. Calculate: a) what is the resistance of the second branch, b) to what voltage was the circuit connected?

Correct answer:

R2 =  2.5 Ω
U =  0.5 V

Step-by-step explanation:

R1=5 Ω I1=0.1 A I2=0.2 A  U=R1 I1=5 0.1=21=0.5 V  U = R2 I2  R2=U/I2=0.5/0.2=2.5 Ω

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