H2P-290
Resistors in parallel
H2 Physics · JC 2 · Easy · Resistors in parallel
A 12 V battery with negligible internal resistance is connected across three identical resistors of resistance R. Circuit X has the three resistors in series. Circuit Y has the three resistors all in parallel. What is the ratio of the total resistance in circuit X to that in circuit Y?
- 9 : 1
- 3 : 1
- 1 : 3
- 1 : 9
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