Multiple Choice
A resistor of unknown resistance and a 15-Ω resistor are connected across a 20-V emf in such a way that a 2.0 A current is observed in the emf. What is the value of the unknown resistance?
A) 75 Ω
B) 12 Ω
C) 7.5 Ω
D) 30 Ω
E) 5.0 Ω
Correct Answer:
Verified
Correct Answer:
Verified
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