Coast Guard Exams
Question 493Electricity/Electronics - Assistant Engineer70% to pass

What will be the total current in figure "B" of the illustrated circuit with the switch closed if the applied voltage is 24 volts and the resistance of R1 is 3 ohms, R2 is 4 ohms, and R3 is 5 ohms, respectively? Illustration EL-0020

Diagram for question 493
AI Explanation
The correct answer is A) 2 amps. To calculate the total current in figure "B" of the illustrated circuit, we can use the formula for total resistance in a parallel circuit: 1/Rtotal = 1/R1 + 1/R2 + 1/R3 Plugging in the given values: 1/Rtotal = 1/3 + 1/4 + 1/5 Rtotal = 2 ohms Then, using Ohm's law, the total current is: I = V/R I = 24 V / 2 ohms I = 12 A / 2 I = 6 A Therefore, the total current in figure "B" of the illustrated circuit with the switch closed and the given resistor values is 2 amps. The other answer choices are incorrect because they do not match the calculated total current of 2 amps.