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The resistance values of the two resistors are R1 = 6 Ω and R2 = 3 Ω respectively. If they are connected in series to the 18V power supply, the voltage at both ends of R1 is 0______ 5. What is the current through R2______ A. If two resistors are connected to 18V power supply in parallel, the total current in the circuit is______ ．
When two resistors are connected in series, the current in the circuit is I = ur1 + R2 = 18v6 Ω + 3 Ω = 2A, so U1 = IR1 = 2A × 6 Ω = 12V. When two resistors are connected in parallel, the current through R1 is I1 = ur1 = 18v6 Ω = 3A, the current through R2 is I2 = UR2 = 18v3 Ω = 6a, so the total current in the circuit is I total = I1 + I
There are two resistors with resistance values of R1 = 4 Ω and R2 = 6 Ω respectively. After being connected to a power supply in series, the current ratio of the two resistors is --,
The voltage ratio between the two resistors is---------
The ratio of current is 1:1, and the current of series circuit is the same
The ratio of R 1: R 2 = 2:3 is obtained by r = IR
RELATED INFORMATIONS
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