witam zadania w załoczniku Dam Naj   $$[]$$ $$[]$$ $$[]$$ $[]$/ $[]/$ $i/$$

1.   a) [latex]U=1,5V I=0,2A R=frac{U}{I} [frac{V}{A}=Ohm] R=frac{1,5}{0,2} \ R=7,5Ohma[/latex]   b) [latex]R=7,5Ohma U=3V I=frac{U}{R}[frac{V}{frac{V}{A}}=A] I=frac{3}{7,5}A \ I=0,4A[/latex]   c) [latex]R=7,5Ohma U=4,5V I=frac{4,5}{7,5}A \ I=0,6A[/latex]   2. a) [latex]30mA=0,03A U=0,03*200=6A[/latex]   b) [latex]1mA=0,001A R=frac{1}{frac{1}{1000}}=1000Ohmow \ R=1kOhm[/latex]   c) [latex]I=frac{4}{100}A = 0,04A = 40mA[/latex]