AP Physics 1 Question 366: Answer and Explanation
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4. Question refers to the following figure:
Determine the total power dissipated through the circuit shown above in terms of V, R1, R2, and R3.
Correct Answer: D
First, replace all the resistors with an equivalent resistor.
R2 and R3 are in series, so R2 and 3, = R2 + R3.
R1 and R2 and 3 are in parallel, so .
Second, calculate the current coming out of the battery,
Finally, calculate the power,