Practice question · Numerical answer
Three resistors of 2, 3 and 7 ohms are connected in series across a 24 volt supply. What current flows, in amperes?
Hints
- In series the resistances add, so find the total resistance first.
- The total is 12 ohms.
Show the answer
2
Why
2 + 3 + 7 = 12 ohms, and 24/12 = 2 A. The same current passes through all three because there is only one path, which is exactly what defines a series connection.
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