Question

串联电路电压电流电功电功率和电阻的关系?

Answer 1

两个例子看看吧：串联：电流处处相等,电压分压.I1＝1AI2＝1AI＝1AI＝I1＝I2U1＝1VU2＝2VU＝3VU＝U1+ U2R1＝1ΩR2＝2ΩR＝3ΩR＝R1+ R2P1＝1WP2＝2WP＝3WP＝P1+ P2P1/ P2 = U1/ U2= R1/ R2并联电流分流,电压相等.I1＝2AI2＝1AI＝3AI＝I1+I2U1＝6VU2＝6VU＝6VU＝U1=U2R1＝3ΩR2＝6ΩR＝2Ω1/ R = 1/ R1 +1/ R2P1＝12WP2＝6WP＝18WP＝P1+ P2P1/ P2 = I1/ I2 = R2/ R1