A 3 ohm and a 7 ohm resistor are wired in series across a 20 volt supply. What is the total current in the circuit?
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Correct answer to question 116 (Electronics Information): 2 amperes
Method
The total resistance is 3 + 7 = 10 ohms, and current equals voltage divided by resistance: 20 / 10 = 2 amperes.
Updated: November 2026
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