Question

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Answer 1

a,

b,\(\left(R1ntR2\right)//R3=>Rtđ=\dfrac{R3\left(R1+R2\right)}{R3+R1+R2}=\dfrac{30\left(14+16\right)}{30+14+16}=15\left(om\right)\)

c, \(=>Im=\dfrac{45}{15}=3A\)

\(=>Um=U12=45V=>I12=\dfrac{45}{R1+R2}=\dfrac{45}{30}=1,5A=I1=I2\)

\(=>U1=1,5.R1=21V\)

\(=>U2=Um-U1=45-21=24V\)

 

Answer 2