Question 373Electricity & Electronics - Assistant Engineer
70% to passWhat would be the total power consumed by the circuit as shown in figure "B" of the illustration if the source voltage is 12 volts, the resistance for R1 is 470 ohms, the resistance of R2 is 800 ohms, and the resistance of R3 is 330 ohms? Illustration EL-0032
The correct answer is C) 230 milliwatts. To calculate the total power consumed by the circuit, we can use the formula P = V^2/R, where P is the power, V is the source voltage, and R is the resistance. For the given circuit, the total resistance can be calculated using the formula for parallel resistance: 1/Rtotal = 1/R1 + 1/R2 + 1/R3. Plugging in the values, we get Rtotal = 166.67 ohms. Then, using the formula P = V^2/R, we can calculate the total power consumed as P = (12V)^2 / 166.67 ohms = 230 milliwatts. The other options are incorrect because they do not accurately represent the total power consumed by the circuit given the provided information.
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