Voltage source

The voltage source which includes internal resistance

Voltage source(Is thickly the げ it is), inside electric resistance to be small, fixed voltage circuit. When shorting large electric current flows, that protection system is necessary.

Electromotive force of power source E_SInternal resistance R_SLoad the voltage which R catches V₀Electric current is designated as I when,

< Math> I = \frac {E_S} {R_S + R} < /math>

< Math> V_0 = IR = \frac {R} {R_S + R} E_S< /math>

Here, R > > R_SWith it does when,

V₀ ≒ E_S

Related item

• current source
• circuit
• direct current circuit