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Oksi-84 [34.3K]

3 years ago

15

A combined circuit has two resistors in series (27.5 ohms and 33.0 ohms) and another in parallel (22.0 ohms). If the power sourc

e is 9.0 volts, what will the current be?
A. 0.062 amps
B. 16 amps
C. 0.56 amps
D. 0.32 amps
E. 39 amps

1 answer:

Dafna1 [17]3 years ago

4 0

R 1,2 = 27.5 + 33.0 = 60.5 Ohms
1/ R 1,2,3 = 1/ 60.5 + 1 / 22 = 82.5 / 1331
R 1, 2, 3 = 1331 / 82.5 = 16.13 Ohms
I = U / R
I = 9 V / 16.13 Ohms = 0.557 A ≈ 0.56 A
Answer: C ) 0.56 Amps

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