4 jan 2010
L i m i t A → ∞ : {\displaystyle Limit\ A\ \to \infty :}
X 0 = 1 β X s ⇒ V 0 = R 1 + R 2 R 1 V i n {\displaystyle X_{0}\ ={\frac {1}{\beta }}X_{s}\ \Rightarrow V_{0}={\frac {R_{1}+R_{2}}{R_{1}}}V_{in}}
X i = 0 {\displaystyle X_{i}\ =0}
Drawing 1
V i n = V 0 ( R 1 R 1 + R 2 ) {\displaystyle V_{in}\ =V_{0}({\frac {R_{1}}{R_{1}+R_{2}}})} .
V 0 = 1 ( R 1 R 1 + R 2 ) V i n {\displaystyle V_{0}\ ={\frac {1}{({\frac {R_{1}}{R_{1}+R_{2}}})}}V_{in}}
F → = q v → × B → {\displaystyle {\vec {F}}\ =q{\vec {v}}\times {\vec {B}}}
d F → = I d l → × B → {\displaystyle d{\vec {F}}\ =Id{\vec {l}}\times {\vec {B}}}
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