Question

Va rog urgent!!! Fizica, clasa 10

Answer 1

Răspuns:

1.

$I(mA)=25;\:\:I(A)=0,025$

$R=\frac{U}{I}=\frac{1\:V}{0,025\:A}=\bf40 \Omega$

2.

$I(mA)=50;\:\:I(A)=0,05$

$R=\frac{U}{I}=\frac{2\:V}{0,05\:A}=\bf40\:\Omega$

3.

$I(mA)=80;\:\:I(A)=0,08$

$R=\frac{U}{I}=\frac{4\:V}{0,08\:A}=\bf50\Omega$

4.

$I(mA)=100;\:\:I(A)=0,1$

$R=\frac{U}{I}=\frac{6\:V}{0,1\:A}=\bf60\Omega$