From the diagram above, calculate the total current in the circuit

From the diagram above, calculate the total current in the circuit
A. 5.0A
B. 3.7A
C. 4.5A
D. 4.0A

Correct Option: Answer is B

V = IR from ohms law

I = VR

Since the resistance are in parallel

1Reff = 1/8+ 1/12 + 1/6

= (2+3+20)/8= 11/36

Reff = 11/36 = 3.27

I = I1 + I2 + I3

= V/Reff= 12/3.27

= 3.669A, I = 3.7A

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