If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?
Correct answer: D. decreasesElectricity
- A. cannot tell
- B. remains the same
- C. increases
- D. decreasesElectricity
Explanation
When R2 opens, its parallel branch carries no current and the equivalent resistance of the circuit increases. With the supply voltage fixed, total current therefore decreases.
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