1. : () V E (: Volt (V) ) () I (: Ampere (A) ) (Voltage Source) (Current Source) :http://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Ohms_law_voltage_source.svg/150px-Ohms_law_voltage_source.svg.pnghttp://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Ohms_law_current_source.svg/150px-Ohms_law_current_source.svg.pnhttp://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Battery_symbol.svg/25px-Battery_symbol.svg.png

2. (Resistance) (Circuit) : R (: Ohm ()) (Inductor) : L (: Henry (H)) (Capacitor) : C (: Farad (F)) :http://upload.wikimedia.org/wikipedia/commons/4/4e/RLC_series_circuit.png 3. , ( ) ( ) () ; : http://www.ikalogic.com/resistors-volt-and-current/ 4. 0 0 , :http://upload.wikimedia.org/wikipedia/commons/thumb/0/09/Benjamin_Franklin_by_Joseph-Siffred_Duplessis.jpg/250px-Benjamin_Franklin_by_Joseph-Siffred_Duplessis.jpg 5. : , () :http://www.clear.rice.edu/elec201/Book/images/img92.gif 6. : , , (.x^ /) ^ :http://www.clear.rice.edu/elec201/Book/images/img92.gif 7. , :http://www.rare-earth-magnets.com/t-conventional-vs-electron-flow.aspx